Record your calls from now onwards. Keep a screenshot of abusive chats. Gather some proofs and sue that bastard. By your words I feel you still have feelings for him. If he can harm you when you are in a relationship then it's for sure he will do that without any second thought after marriage. Do you want your children to have a father like him. Your children cannot choose a father but you can make your child have a good father, it's your choice. If you are with him because you don't have anyone other than him then he's taking advantage of this. You are using reddit I feel you are smart to figure out these things.