How to Set Boundaries With a Manipulator (With Scripts)

What a boundary is (and isn't)

A boundary describes what you will do, not what the other person must do. "You can't yell at me" is a demand you can't enforce. "If you yell, I'll end the call" is a boundary you control. This matters with manipulative people, who are skilled at arguing about demands.

The three-step formula

1. Name the behaviour briefly and specifically.
2. State what you will do if it continues.
3. Follow through calmly, every time.

Example: "When you bring up my past mistakes during arguments, I'm going to leave the room. We can talk again when we can stay on the current issue."

Scripts for partners

• "I'm going to see my friends on Friday. I'll text you when I'm home."
• "I won't share my passwords. That's not about trust, it's about privacy."
• "If you go silent for days, I'm not going to chase you. I'm here when you want to talk."

Scripts for parents and family

• "I'll call on Sundays. I can't promise daily calls."
• "I'm not going to discuss my relationship. If it comes up, I'll change the subject."
• "If comparisons with my brother start again, I'll leave dinner early."

Scripts for friends

• "I can't lend money right now."
• "I'm not going to pass messages between you two."

Scripts for work

• "I can take this on after I finish the current project, on Thursday."
• "I'd like feedback with specific examples so I can act on it."
• "Let's put that in writing."

Expect pushback: the extinction burst

When a pattern stops working, it often intensifies briefly before fading. Expect guilt-tripping, anger, silence, a sudden wave of affection, or DARVO. This doesn't mean your boundary is wrong; it means it's being tested. Consistency is what makes it work.

Don't over-explain

Every reason you give becomes something to argue with. One sentence of context is enough. If they push, repeat yourself calmly, like a broken record.

Boundaries by text

Writing a boundary can be easier than saying it, and it leaves a record. Keep it brief and kind: "I'm not comfortable discussing my finances. I'd rather we keep that topic off the table." Avoid long paragraphs explaining your feelings, which invite debate. Before sending, run it through Check Message to check it sounds calm rather than cold or angry.

Boundaries you can set with yourself

Some of the most effective boundaries are about your own behaviour: "I won't reply to messages after 10 pm", "I won't make decisions on the same day as an argument", "I'll call my friend before agreeing to anything big". These don't depend on anyone else's cooperation and protect you from being rushed.

Recognising when a boundary is working

A boundary is working if the behaviour gradually reduces, or if you feel less affected by it because you've stopped engaging. It isn't working if you're constantly enforcing it with no change, or if the consequences for you keep escalating. In that case, a bigger boundary such as distance or ending contact may be needed. If you're unsure where you stand, take the dark psychology test.

When boundaries aren't respected

If someone repeatedly ignores your boundaries, the consequence may need to grow: less contact, no contact, or ending the relationship. If you feel unsafe, reach out to a support service and read leaving a manipulative relationship. Before sending a boundary message, you can check its tone with Check Message to make sure it sounds firm but calm.