How to Set Boundaries Without Losing the Relationship

Episode 9: Behind the Therapy Door

This article draws on a conversation between therapists Sarah Thome and Matt Gallagher. Listen to the full episode for the stories behind the takeaways.

You know you need boundaries. You also know that the moment you set one, someone is going to be upset. So you keep swallowing your needs, walking on eggshells, and hoping the problem resolves itself. On Episode 9 of Behind the Therapy Door, titled “No More Eggshells,” Sarah Thome and Matt Gallagher tackle the fear that stops most people from setting healthy boundaries and offer a framework that protects both the relationship and your sanity.

Related: Communication in relationships.

Related: PCM® vs Enneagram: understanding personality frameworks.

Why Are Boundaries So Hard to Set?

Matt defines a boundary simply: “Where I end and you begin.” But simple does not mean easy. Sarah explains that the reason boundaries feel terrifying is that most people confuse setting a boundary with starting a fight. They imagine the worst-case response: anger, rejection, the end of the relationship. So they stay silent, and the cost of that silence is resentment, disconnection, and eventually an explosion that does more damage than the boundary ever would have.

Your personality type plays a role. Harmonizer types struggle because boundaries feel like rejection. Persister types may bulldoze others’ boundaries without realizing it because they are so focused on doing things “the right way.” Thinker types can start controlling all your stuff. Recognizing your pattern is the first step toward changing it.

Related: PCM® personality types and distress.

How the Process Communication Model® Explains Boundary Struggles

Each PCM® personality type has a distinct relationship with boundaries, and under distress each one violates or avoids them differently. Harmonizers struggle to set a boundary at all. Persisters stop noticing others’ boundaries and roll right into their stuff. Thinkers try to control all of your stuff. Rebels, who tend toward avoidance, blow through walls with their energy.

Understanding your type gives you a roadmap: not just what to say when setting a boundary, but why it feels so hard for you specifically, and what your partner needs to hear in order to receive the boundary without feeling attacked.

Related: Compare PCM® to other personality models.

What Does a Healthy Boundary Actually Sound Like?

Sarah teaches the sandwich approach: start with a positive, deliver the boundary, close with a positive. Here is her example: “I love seeing you and our time together is so important. What I am going to need you to do is call before you arrive. I am so glad because we have so much fun when we are together.”

The key is that the boundary is specific, stated calmly, and wrapped in genuine warmth. You are not attacking the other person. You are clarifying what you need in order to stay connected. Matt adds the Everybody Loves Raymond illustration: the mother-in-law who walks in the back door unannounced. For some families, that is fine. For others, “you are a hostage in your own home” if you cannot speak up about it.

“If you can’t say no, if you feel like you have to say yes because of what you’re afraid of, that is not really a boundary.”

— Matt Gallagher, on the motivation law from Boundaries

Related: Communication strategies for families.

What Happens When You Do Not Set Boundaries?

Sarah names the cost directly: “You are disheartened. You feel disconnected. You are internally resentful and bitter.” The irony is that the thing you are trying to protect, the relationship, is the thing being destroyed by your silence. Unspoken needs do not disappear. They build pressure. And pressure always finds a release, usually at the worst possible time and in the worst possible way.

• Resentment builds silently. Every time you say yes when you mean no, a small deposit goes into the resentment account. Eventually, the balance gets called due.
• Your partner cannot read your mind. If you have not clearly stated your need, you cannot blame them for not meeting it.
• Boundaries create safety, not distance. Sarah emphasizes this: “Healthy boundaries are synonymous with really safe, secure attachment.” The people in your life who can respect a boundary are the ones worth keeping.

Related: Workshop options.

How Do Boundaries Connect to Attachment and Codependency?

Cloud and Townsend’s Boundaries and Melody Beattie’s Codependent No More are two resources Sarah and Matt reference repeatedly. The core insight from both: if you cannot say no because of fear, whether fear of anger, abandonment, or losing credit, then you do not truly have boundaries. You have a hostage negotiation.

Matt reframes the eggshell metaphor: “When we say walking on eggshells, I wonder: what if you just start crushing them?” The point is not cruelty. The point is that the eggshells only have power because you have been tiptoeing around them. Crushing them means choosing honesty over comfort.

Related: About Sarah and Matt.

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