Interpersonal Process in Eating Disorder Treatment: Why What Happens Between Us Matters
Written by Dr. Kait Rosiere, Licensed Psychologist and Eating Disorder Specialist in Orlando, FL
Do you ever wonder why you keep ending up in the same painful relationship patterns? Maybe you give and give until you have nothing left. Maybe you push people away the moment they get close. Maybe you swing between desperately wanting connection and being terrified of it.
These patterns did not come out of nowhere. They started early — in your family, your culture, and your closest childhood relationships. And they do not just show up in your friendships or romantic life. They show up in your relationship with food, too.
Interpersonal Process Therapy can help you understand where these patterns come from and, more importantly, help you change them.
What is the Interpersonal Process in Therapy?
The Interpersonal Process in therapy is an integrative relational model to psychotherapy developed by Edward Teyber and Faith Holmes Teyber. Unlike therapies that focus mainly on changing thoughts or behaviors, the Interpersonal Process approach looks at how your earliest relationships shaped who you are today — and how those old patterns keep replaying in your current life.
This approach focuses on three core domains that shape a person's inner world and relationships:
The Interpersonal Domain — your relationships and relational patterns
The Cognitive Domain — your beliefs, schemas, and internal working models
The Familial and Cultural Domain — your family of origin, parenting experiences, and cultural context
Together, these three areas explain why you relate to yourself and others the way you do. Let's look at each one in depth.
The Three Domains of Interpersonal Process Therapy
The Interpersonal Domain
The interpersonal domain is about your relationships and relational patterns — how you connect with others, handle conflict, express your needs, and cope when things feel unsafe.
Using this model, your therapist pays close attention to what is happening between the two of you in the room. This is called the process dimension. It is not just about what you say — it is about how you say it, what you avoid, and what patterns show up in the therapeutic relationship that mirror patterns in your life outside of therapy.
For example, if you tend to people-please in your relationships, your therapist might notice you doing the same thing in session — agreeing with everything, minimizing your own feelings, or checking to see if the therapist is upset with you. These real-time moments become powerful material for understanding and change.
For people with eating disorders, relational patterns often show up in food behaviors. You might restrict when you feel unseen. You might binge when loneliness becomes too much. The eating disorder becomes a way of managing relational pain that feels too big to hold.
The Cognitive Domain
The cognitive domain focuses on your beliefs, schemas, and internal working models — the mental maps you carry about yourself, other people, and relationships.
These beliefs form early. If your needs were consistently met as a child, you likely developed a core belief that says: "I am worthy of love. Other people are safe. I can ask for what I need."
But if your needs were ignored, punished, or met inconsistently, you may have developed very different beliefs:
"I am too much."
"If I show my real feelings, people will leave."
"I have to earn love by being perfect."
"No one will be there for me, so I have to handle everything alone."
These are called relational schemas — deeply held, often unconscious beliefs about what happens when you need something from another person. They feel like facts, but they are actually learned responses to your early environment.
In eating disorder recovery, these schemas are central. The belief "I am too much" can drive restriction. The belief "I have to be perfect to be loved" can fuel compulsive exercise or rigid food rules. Interpersonal Process Therapy helps you identify these schemas, understand where they came from, and begin to update them through new relational experiences.
The Familial and Cultural Domain
The familial and cultural domain explores the environment you grew up in — your family of origin, the parenting you received, and the cultural messages that shaped your understanding of emotions, relationships, bodies, food, and self-worth.
Parenting styles play a major role. Research identifies four primary parenting styles, and each one shapes attachment and relational patterns differently:
Authoritative parenting (warm and structured) tends to produce secure attachment. The child learns: "My feelings matter. I can explore the world and come back to safety."
Authoritarian parenting (rigid and controlling) often produces anxious or avoidant attachment. The child learns: "My feelings are not important. I need to follow the rules to be accepted."
Permissive parenting (warm but without boundaries) can produce anxious attachment. The child learns: "I am not sure anyone is really in charge. I need to hold on tightly to feel safe."
Neglectful parenting (disengaged) often produces avoidant or disorganized attachment. The child learns: "No one is coming. I am on my own."
Cultural context also matters deeply. Culture shapes what emotions are acceptable to express, how families handle conflict, what roles men and women are expected to play, and how bodies and food are valued. For example, in families or cultures where thinness is tied to discipline or moral worth, diet culture becomes embedded in the relational fabric — and food restriction can become a way of earning love or belonging.
Interpersonal Process Therapy takes all of this into account. It does not look at you in isolation. It looks at the full web of family, culture, and relational history that made you who you are.
Tracking Anxiety and Predominant Affect
One of the key practices in Interpersonal Process Therapy is tracking anxiety and emotional experience as they arise in session. Your therapist is not just listening to your story — they are paying attention to what happens in your body and emotions right now, as you talk.
When anxiety shows up — a shift in eye contact, a change in tone, a sudden urge to change the subject — it signals that something meaningful is being touched. Your therapist gently follows that thread.
Over time, patterns emerge. Certain emotions keep showing up across different situations and relationships. This is called your predominant affect — the core emotional theme that runs through your life. It might be shame. It might be sadness about never feeling truly seen. It might be anger that was never allowed.
Your therapist works with you to understand: does this predominant affect come from one core wound — a single, defining relational experience — or does it come from multiple stressors that built up over time? Sometimes it is a clear moment: a parent's rejection, a traumatic loss, a betrayal. Other times it is the slow accumulation of being overlooked, dismissed, or unsupported.
For people with eating disorders, the predominant affect often connects directly to food behaviors. If your core emotional experience is shame, purging may feel like a way to get rid of that shame. If it is emptiness, binge eating may feel like trying to fill a void that no amount of food can reach. Understanding your predominant affect helps you see the emotional logic beneath the eating disorder — and that understanding is the first step toward change.
Attachment Styles: Shaped by Early Experiences, Carried into Adulthood
Attachment theory, developed by John Bowlby and later expanded by Kim Bartholomew and others, shows that your earliest caregiving experiences create a template for how you relate to others throughout your life. Interpersonal Process Therapy draws heavily on this framework.
There are four main attachment styles, and each one is shaped by specific parenting patterns. To learn more about each style in depth, read our full guide on attachment styles and eating disorders.
Secure Attachment
Secure attachment develops when caregivers are consistently warm, responsive, and attuned. The child learns that their needs matter, that emotions are safe to feel, and that people can be relied on.
As adults, securely attached people are generally comfortable with closeness and independence. They can ask for help, tolerate conflict, and repair ruptures in relationships. Secure attachment is the foundation that Interpersonal Process Therapy aims to help clients build — or rebuild.
Anxious Attachment (Preoccupied)
Anxious attachment develops when caregivers are inconsistently available — sometimes warm and responsive, other times distracted, overwhelmed, or emotionally unavailable. The child learns that love is possible but unpredictable, so they must work hard to earn it.
As adults, people with anxious attachment tend to worry about whether others truly care about them. They may seek constant reassurance, fear abandonment, and struggle with intense emotional reactions when they sense distance in a relationship.
In eating disorders, anxious attachment often shows up as using food behaviors to manage the anxiety of feeling disconnected from important people. Restricting may be a way to feel in control when the relationship feels out of control. Binge eating may soothe the overwhelming fear of being alone.
Avoidant Attachment (Dismissive)
Avoidant attachment develops when caregivers are emotionally distant, dismissive, or uncomfortable with emotional closeness. The child learns that expressing needs leads to rejection, so they stop reaching out.
As adults, people with avoidant attachment value independence and self-sufficiency. They may feel uncomfortable with emotional intimacy, minimize the importance of relationships, and have difficulty identifying or expressing their feelings.
In eating disorders, avoidant attachment can look like extreme self-reliance — controlling food intake as a way to prove you do not need anything from anyone. Exercise addiction or rigid meal planning can become a way to stay in control and avoid the vulnerability of needing other people.
Disorganized Attachment (Fearful-Avoidant)
Disorganized attachment develops when caregivers are a source of both comfort and fear — often in families marked by abuse, addiction, untreated trauma, or severe mental illness. The child faces an impossible dilemma: the person they need for safety is also the person who frightens them.
As adults, people with disorganized attachment experience intense internal conflict. They desperately want connection but are terrified of it. Relationships feel chaotic, and they may cycle between clinging and pushing away.
In eating disorders, disorganized attachment is especially common. The chaotic push-pull of wanting comfort and fearing it can drive binge-purge cycles, rapid switches between restriction and overeating, and an overall sense that nothing — including food — feels safe or reliable.
The Three Inflexible Interpersonal Coping Styles
One of the most powerful contributions of Interpersonal Process Therapy is the concept of inflexible interpersonal coping styles. Drawing on the work of Karen Horney, Teyber identifies three primary ways people learn to manage anxiety in relationships. These coping styles developed for good reason — they kept you safe as a child — but they become rigid and limiting in adulthood.
Moving Toward (Compliance)
What it looks like: You manage relational anxiety by seeking approval, accommodating others, and putting everyone else's needs before your own. You are the peacekeeper, the caretaker, the one who makes sure everyone is okay — often at great cost to yourself.
Core belief:"If I am good enough, helpful enough, and never cause conflict, people will love me and stay."
How it shows up in relationships: You have difficulty saying no. You suppress your own opinions and feelings to avoid rocking the boat. You may feel resentful but unable to express it. You tend to lose yourself in relationships, defining your worth by how much you give.
How it connects to eating disorders: Moving toward often drives restriction, perfectionism around food and body, and compulsive caretaking. You may neglect feeding yourself while making sure everyone else is nourished. Your boundaries around food mirror your boundaries in relationships — almost nonexistent.
Moving Against (Control)
What it looks like: You manage relational anxiety by taking charge, being right, competing, and maintaining power in relationships. You are the one who stays in control — of conversations, plans, outcomes, and emotions.
Core belief:"If I am strong enough and in control, no one can hurt me. Vulnerability is weakness."
How it shows up in relationships: You may have difficulty admitting when you are wrong. You tend to dominate conversations or decisions. Emotional intimacy feels threatening because it requires letting your guard down. You may intimidate others without realizing it, or you may find that people feel they cannot be honest with you.
How it connects to eating disorders: Moving against often shows up as rigid food rules, intense exercise regimens, and an aggressive pursuit of body control. The eating disorder becomes another arena where you prove your discipline and strength. Admitting you need help — with food or anything else — feels like defeat.
Moving Away (Withdrawal)
What it looks like: You manage relational anxiety by pulling back, creating distance, and becoming self-sufficient. You are the one who disappears — emotionally or physically — when things get intense.
Core belief:"If I do not need anyone, no one can disappoint me. I am safest alone."
How it shows up in relationships: You may appear aloof, detached, or emotionally unavailable. You have difficulty asking for help or showing vulnerability. When conflict arises, you shut down or leave rather than engage. People may describe you as hard to read or hard to get close to.
How it connects to eating disorders: Moving away drives isolation around food and body. You may eat alone, hide food behaviors, and refuse to let anyone into your struggle. Shame and secrecy become hallmarks of the eating disorder. Recovery feels threatening because it requires letting people in — the very thing you have spent your life avoiding.
Why Flexibility Matters
It is important to understand that none of these coping styles are inherently bad. Healthy people use all three at different times — sometimes you accommodate, sometimes you assert, sometimes you create space. The problem is when one style becomes your only option. When you can only move toward, or only move against, or only move away, your relational life narrows. You lose the flexibility to respond to what each situation actually calls for.
Interpersonal Process Therapy helps you recognize your dominant coping style, understand why it developed, and gradually expand your range — giving you more choices in how you relate to others and to yourself.
How Is Interpersonal Process Therapy Different from Interpersonal Therapy (IPT)?
People sometimes confuse Interpersonal Process Therapy with Interpersonal Therapy (IPT). While both focus on relationships, they are quite different in approach:
Interpersonal Therapy (IPT) is a structured, time-limited treatment that targets four specific problem areas: grief, role disputes, role transitions, and interpersonal deficits. It is focused on current relationships and symptom reduction.
Interpersonal Process Therapy goes deeper. It explores the origins of your relational patterns — how childhood, family, culture, and attachment shaped who you are. It uses the therapeutic relationship itself as a vehicle for change, not just a space to talk about change. And it works with the three coping styles described above to help you understand and shift lifelong patterns.
Think of it this way: IPT helps you solve a current relational problem. Interpersonal Process Therapy helps you understand why you keep having that kind of problem — and changes the pattern at its root.
Reparative Relational Experiences: Where Healing Happens
The heart of Interpersonal Process Therapy is the reparative relational experience — sometimes called the corrective emotional experience. This is the moment in therapy when something different happens than what you have always expected.
Here is how it works: You walk into every relationship carrying an internal template — a set of expectations about what will happen when you show vulnerability, express a need, or make a mistake. These expectations are based on your earliest attachment experiences.
For example:
If you learned that expressing sadness made your parent uncomfortable, you expect your therapist to change the subject or dismiss your tears.
If you learned that being angry meant being punished, you expect conflict to end the relationship.
If you learned that needing help meant being seen as weak, you expect your therapist to judge you for struggling.
But in Interpersonal Process Therapy, the therapist responds differently than your template predicts. When you show sadness, the therapist stays present and attuned. When you express anger, the therapist does not retaliate or withdraw. When you admit you are struggling, the therapist meets you with warmth rather than judgment.
This is not just reassurance — it is a lived experience that challenges your deepest beliefs about relationships. Over time, these moments accumulate. Your nervous system begins to learn something new: "Maybe I can be seen and still be safe. Maybe I can need someone and not be abandoned. Maybe I do not have to earn love."
For people recovering from eating disorders, reparative relational experiences are transformative. When you have spent years managing emotions through food because people felt unsafe, having a relationship where you are truly met — where your feelings do not overwhelm or drive someone away — can change everything. The therapeutic relationship becomes proof that connection is possible without the eating disorder.
What Reparative Relational Experiences Look Like
Reparative relational experiences are not dramatic or performative. They are often quiet, subtle moments. They might look like:
Your therapist noticing you pulled back emotionally and gently naming it — without pushing.
Feeling safe enough to disagree with your therapist for the first time and discovering the relationship survives.
Expressing a need and being met with care instead of the expected criticism or dismissal.
Having a rupture in the therapeutic relationship — a misunderstanding, a moment of disconnection — and repairing it together.
Being allowed to sit in difficult emotions without anyone trying to fix them or rush you through them.
These experiences, repeated over time, gradually rewrite your internal working model. You start to believe — not just intellectually, but in your body — that relationships can be different.
Why This Matters for Eating Disorder Recovery
Eating disorders are not just about food. They are about the emotions, beliefs, and relational patterns that food behaviors are trying to manage. Interpersonal Process Therapy offers a framework for understanding the full picture — the interpersonal patterns, the cognitive schemas, and the familial and cultural roots that keep the eating disorder in place.
When therapy addresses only symptoms — what you eat, how much you exercise, what your weight is — it misses the deeper story. Interpersonal Process Therapy asks: What are your relationships teaching you about yourself? What old wounds are still driving your choices? And what would it feel like to relate to yourself and others in a new way?
Recovery, from this perspective, is not just about changing food behaviors. It is about building the relational safety and flexibility that make food behaviors unnecessary.
Reach Out
If you see yourself in these patterns — if you are tired of the same relational cycles and ready to understand what is driving them — Interpersonal Process Therapy may be a good fit for you.
At Bloom Psychological Services in Orlando, FL, Dr. Kait Rosiere integrates Interpersonal Process Therapy with other evidence-based approaches to provide comprehensive eating disorder treatment. Therapy is a place where you can be seen, understood, and met with something different than what you have always known.
Contact us today to schedule a consultation.
Frequently Asked Questions
What is the difference between Interpersonal Process Therapy and CBT?
Cognitive Behavioral Therapy (CBT) focuses on identifying and changing unhelpful thought patterns and behaviors. Interpersonal Process Therapy goes deeper into the relational and developmental origins of those patterns. Many therapists integrate both approaches, using CBT for symptom management and Interpersonal Process Therapy for the deeper relational work.
Is Interpersonal Process Therapy evidence-based?
Yes. Interpersonal Process Therapy is grounded in decades of research on attachment theory, relational psychotherapy, and the therapeutic alliance. Studies consistently show that the quality of the therapeutic relationship is one of the strongest predictors of positive treatment outcomes (Accurso et al., 2015).
How long does Interpersonal Process Therapy take?
Interpersonal Process Therapy is not a brief, structured treatment. Because it works with deep relational patterns and attachment, it typically unfolds over months or years. The pace depends on your unique history and goals. Your therapist will work with you to determine what feels right.
Can Interpersonal Process Therapy help with eating disorders specifically?
Absolutely. Because eating disorders are deeply connected to relational patterns, attachment, and emotional regulation, Interpersonal Process Therapy is particularly well-suited for eating disorder treatment. It helps you understand the relational roots of food behaviors and build new ways of connecting that make the eating disorder less necessary.
What are the three inflexible coping styles?
The three inflexible interpersonal coping styles are: moving toward (compliance and people-pleasing), moving against (control and dominance), and moving away (withdrawal and emotional distance). All three develop as adaptive responses to early relational environments but become limiting when they are the only option available.
About the Author
Dr. Kait Rosiere is a licensed psychologist and eating disorder specialist based in Orlando, Florida. She provides evidence-based therapy for eating disorders, trauma, and anxiety at Bloom Psychological Services. Dr. Rosiere integrates Interpersonal Process, CBT-E, DBT, EFT, IFS, and ACT to provide comprehensive eating disorder treatment.
References
Bowlby, J. (1969). Attachment and Loss: Vol. 1. Attachment. Basic Books.
Horney, K. (1945). Our Inner Conflicts: A Constructive Theory of Neurosis. W. W. Norton.
Teyber, E., & Teyber, F. H. (2017). Interpersonal Process in Therapy: An Integrative Model (7th ed.). Cengage Learning.
