I cut friends off frequently

I was badly abused growing up. I learned a lot of terrible communication habits and abusive behavior (i feel really bad about this). But have unlearned a lot with therapy and research online.

My communication is a lot better. I talk about problems early. If i notice something is off, I ask friends if they are okay/if i did anything to upset them. However, i notice i have really rigid deal breakers. If someone insults me, yells, or makes false accusations this crosses a line for me. If they don’t apologize or if it feels insincere, I feel that things are irreconcilable and tell them i no longer wish to be on speaking terms. Is this normal?

I have other friends who can manage to be on speaking terms with people they don’t like. But i physically feel unsafe and feel the need to create clear boundaries. If i feel like the conflict went too far i never want to talk to these people again.