What would you do if someone threatened abuse on a person whom you cared about?

Would you be angry?

Think of it this way. You are like two people. The you that is being harmed and victimized who deserves to be protected, and the you that is being abusive. The you that is being harmed is the core of you, who you really are. His actions show that he cares about that core of you and cannot sit by and allow that core to be abused. You really are putting him in a powerless position.

My suggestion is to own responsibility for breaking whatever safety plan you had together. That is the only concrete tool he has to protect you.