did/does the relationship still mean something to you? if it does maybe some joint therapy might be helpful. if its about safety and not getting hurt, my first impulse would be to go. sooner than later. I didn't wait for a concussion, I didn't get hit either. But there were enough comments that went towards that kind of ending. I wasn't going to find out which idea he would try first.

Are you set up to be financially independant? If thats where you're heading in your own mind, you might want to try it, see if life gets better for you. No one should be getting smacked around for any reason.