According To You
Trying to help someone with serious psychological issues is incredibly hard for both people. When it gets to the point where they are being emotionally and psychologically. abusive, it is time to leave. Those criticisms and insults are a form of abuse. They are meant to break you down. It’s what some people do when they feel weak. They tear down stronger people.
Your boyfriend has no right to do this to you. He is angry and resentful and you were smart to get away from him. Staying trapped in a marriage like that will destroy you. You have to remember to put yourself and your sanity before anyone else. No one else is going to do it.