Please help me...PLEASE. He hit me.?

The only way he will even try to change is if you leave him, and dont go back until he has proven that he has changed. Men like him cannot just change on their own, they need therapy for a long time. You can research therapy for men who commit domestic violence on the internet. You will also learn that there is absolutely no hope for change at all unless you leave. Men never, ever just change if the woman is prepared to stay and forgive them. You must break up first, and only get back to him when he can talk to you at length about what he has learned in therapy, so you know it is true. Even if he does, you should insist that going to therapy together would be a condition of you getting back with him. If you do not leave, he will not change. It is your responsibility, if you really love him, to leave him, so he is made to realise that his behaviour is unacceptable. By staying, you are telling him it's fine. He is committing crimes against you, and if he puts you in hospital or someone calls the police, things will get much much worse for him. For his own good, leave.