Boundaries are one of the most commonly misunderstood ideas in relationships, especially for women navigating codependency, emotional abuse, coercive control, high-conflict divorce, or post-separation abuse.
Most of us were never actually taught what a boundary is. We were taught to be kind, accommodating, forgiving, and patient. We were taught to explain ourselves clearly, give people the benefit of the doubt, and keep trying to repair relationships long after we were exhausted. Women, in particular, are often encouraged to measure their goodness by how much discomfort they can absorb without inconveniencing anyone else.
So when someone tells us to “set a boundary,” we may assume that means telling another person what they’re no longer permitted to do. We might say, “You can’t speak to me that way,” “You need to stop sending hostile messages,” “You aren’t permitted to yell at me,” or “You need to respect my privacy.”
Those may be completely reasonable requests, but they aren’t necessarily boundaries.
A boundary isn’t a rule you create for another adult. It’s a decision about what you’ll participate in, what kind of access you’ll allow, and what you’ll do when a limit is crossed.
Instead of saying, “You can’t yell at me,” a boundary might be, “If you begin yelling, I’m going to end the conversation.” Instead of saying, “Stop sending me abusive texts,” you might decide, “I’ll respond only to messages about the children that require a response. I won’t engage with insults, accusations, or commentary about our marriage.” Instead of saying, “You’re not permitted to come into my house,” the boundary might be, “Exchanges will happen at the front door, and I’ll no longer invite you inside.”
The key difference is that boundaries don’t give us control over another person’s behavior.
That can be deeply frustrating, especially when you’ve spent years trying to find the right words to make your partner understand you. You may have explained how his behavior affects you. You may have asked calmly, cried, begged, reasoned, negotiated, or gone to therapy. You may have tried every possible version of the conversation, and still, nothing changed.
A boundary isn’t a perfect sentence that finally makes another person become respectful. Your partner or former spouse may continue yelling, criticizing, blaming, drinking, violating agreements, or sending hostile messages. Your boundary isn’t his agreement. Your boundary is your response.
Boundaries Protect Us and Contain Us
In her book Facing Codependence, Pia Mellody describes boundaries as a system that both protects us and contains us.
That second part is key. Boundaries help protect us from other people’s intrusive, abusive, or inappropriate behavior, but they also remind us that we’re responsible for containing our own behavior.
External boundaries relate to your physical body, personal space, possessions, privacy, and home. They include your right to decide who touches you, who enters your space, who uses your belongings, and who has access to your body. You can say no to sex, affection, a hug, or physical closeness, even within a marriage. You can close a door, keep your phone private, and decide that your former spouse no longer enters your home.
External boundaries also remind us that we don’t have the right to search someone else’s phone, block a doorway, grab someone during an argument, read private messages, or use physical intimidation because we’re angry or afraid.
Internal boundaries separate your thoughts, feelings, beliefs, memories, and emotional experience from another person’s. An internal boundary allows you to hear that someone is angry without immediately deciding you’ve done something wrong. It allows you to care that another person is disappointed without assuming it’s your job to make that disappointment disappear. It allows you to hear an accusation without accepting it as fact.
An internal boundary also reminds you that being hurt doesn’t give you permission to punish, monitor, shame, or control someone else.
Healthy boundaries help us understand where we end and another person begins. Your feelings are yours, and his feelings are his. Your choices are yours, and his choices are his. You’re responsible for your behavior, but you’re not responsible for regulating every emotion another adult experiences.
Why Boundaries Feel So Difficult in Emotionally Abusive Relationships
This can be incredibly difficult when you’ve experienced emotional abuse, narcissistic abuse, or coercive control.
In an emotionally abusive relationship, your internal experience may be treated as something your partner has the right to define. Your feelings may be debated, your memories corrected, your perceptions dismissed, and your needs described as demands. Your no may be treated as the beginning of a negotiation rather than the end of the conversation.
At the same time, you may be expected to manage everything happening inside your partner. If he’s angry, you need to calm him down. If he’s withdrawn, you need to figure out what you did. If he’s disappointed, you need to make it up to him. If he’s unhappy, you need to become more accommodating, less demanding, less emotional, more sexual, more patient, or easier to live with.
Over time, the lines between you can become so blurred that you no longer know what belongs to you.
That’s why boundary work begins with something deeper than learning a script. It begins with recognizing that you’re a separate person. Your body, time, attention, thoughts, feelings, memories, beliefs, and private information belong to you.
Boundaries Aren’t Punishments
Another common misconception is that a boundary is a punishment or threat.
A punishment is designed to make another person suffer so that they’ll change their behavior. A boundary consequence is an action you take to protect yourself, your children, your time, or your emotional capacity.
Saying, “I’m refusing to speak to you for three days so you understand what you did to me,” is punitive. Saying, “I’m ending this conversation because it has become verbally abusive,” is protective.
Cancelling someone’s parenting time because he didn’t answer your message is punitive and uses the children as leverage. Following the parenting plan and keeping communication limited to necessary information about the children is a boundary.
A boundary isn’t revenge. It’s not a lesson you force someone else to learn. It’s information about what you’ll do in response to the reality in front of you.
You Don’t Have to Keep Explaining
Many women become trapped in endless conversations about whether their boundaries are fair.
You set a limit, and he challenges it, so you explain. He twists the explanation, so you clarify. He tells you that your reasoning makes no sense, so you provide more context. He says you’re being selfish, controlling, or unreasonable, so you try to prove that you’re none of those things.
Hours later, you’re still debating whether you’re entitled to have the limit you started with.
You can know what’s true for you without persuading another person to validate it. You can say that you understand he disagrees, but you’ve made your decision. You can tell him you’re not discussing it further, that you’ve already answered the question, or simply that your answer is still no.
A healthy person may have questions about a boundary. They may have feelings about it, and sometimes clarification and conversation are appropriate. But a person who benefits from your lack of boundaries may use conversation to wear you down. He may not be seeking understanding. He may be seeking continued access.
Why Setting Boundaries Creates Guilt
For many women, the most difficult part of setting a boundary isn’t finding the words. It’s tolerating the guilt that comes afterward.
You may have learned that being loving means always being available, that being a good wife means giving another chance, and that being a good mother means absorbing everyone else’s pain. You may have learned that being kind means making sure no one is ever uncomfortable because of your choices.
But boundaries will sometimes make other people uncomfortable.
Your ex may be angry that you no longer answer immediately. A family member may feel hurt when you stop discussing the details of your divorce. Your former spouse may accuse you of being controlling because you require communication through a co-parenting app. Someone may feel rejected when you say no.
Their feelings may be real, but their feelings don’t automatically mean your boundary is wrong.
Someone can feel rejected without you having behaved cruelly. Someone can feel controlled because they’re no longer able to control you. Someone can feel abandoned because you’ve stopped abandoning yourself.
Guilt isn’t always proof that you’ve done something wrong. Sometimes it’s simply the feeling that arises when you stop doing what other people expect of you.
Boundaries During Divorce and Co-Parenting
Boundaries become especially important during divorce and co-parenting.
The end of a marriage doesn’t automatically end the emotional system of the marriage. Your former spouse may still expect immediate access to you, information about your life, or the right to enter your home. He may believe that because you share children, he’s entitled to know where you are, who you’re seeing, how you spend your money, or what you do during your parenting time.
He isn’t.
Co-parenting doesn’t require unrestricted access. You can share information about the children without sharing private information about yourself. You can be responsive without being constantly available. You can be civil without remaining emotionally intimate. You can follow the parenting plan without continuing to function as your ex’s assistant, therapist, scheduler, or emotional regulator.
This is particularly important in cases involving post-separation abuse. Communication about the children can become a pretext for continued harassment, surveillance, accusations, and control.
A post-divorce boundary might mean using one written communication channel or checking messages at designated times instead of reacting immediately. It might mean ignoring insults and responding only to the child-related information that requires an answer. It may mean holding exchanges in public, through school, or with the assistance of a third party. It may mean that your ex no longer enters your home, or that you stop defending yourself against every accusation.
These boundaries can feel frightening at first because hypervigilance may have become your normal. Responding immediately may feel safer because you’ve spent years trying to prevent anger or escalation. Creating distance may initially feel more dangerous than staying entangled.
That doesn’t necessarily mean the boundary is wrong. It may mean your nervous system is learning that you’re no longer required to organize your entire life around another person’s reactions.
If setting or enforcing a boundary could place you in danger, prioritize safety planning over confrontation. You don’t owe an abusive partner a dramatic announcement. Quiet, strategic boundaries are still boundaries.
The Most Important Boundaries May Be Internal
Some of the most powerful boundaries are never spoken aloud. They’re commitments you make to yourself.
You may decide that you won’t use his mood as evidence of your worth or treat every accusation as a question you’re required to answer. You may stop searching for the explanation that will finally make him validate your experience. You may decide not to share vulnerable information with someone who has repeatedly weaponized it, confuse guilt with wrongdoing, or ask an emotionally unsafe person to confirm your reality.
Most importantly, you may decide that you won’t keep abandoning yourself to make someone else comfortable.
That’s what boundaries are really about.
They aren’t about becoming cold, selfish, or unloving, and they aren’t about controlling another person. They’re about recognizing that you’re a separate person with the right to protect your body, time, home, energy, privacy, emotional health, and peace.
You’re responsible for how you treat other people. You’re not responsible for managing every reaction they have to you.
A boundary doesn’t guarantee that another person will stop hurting you. It helps you trust that when something feels intrusive, abusive, unsafe, or unsustainable, you can notice it and respond.