If your parents don't let you move back when your bf hits you, they can burn.

If that recurs you might want to call police. Immediately. (It gets harder to get them to believe you as time goes on. While it is reportable later, I personally consider it a "now or never" thing. Keep your phone in your pocket. Be able to take pictures anytime. An overnight bag and your important papers in your car or in a bag beside the door).

Don't let yourself turn into one of those women that let this and that slide until you are in an even more impossible situation than you're already in. Not that bad can turn into a serious situation real quick. Once an abuser knows you won't take action, it is a slippery slope to more frequent and serious abuses. pack what you need to survive and get out of there. Go to a shelter, go to your parents, go anywhere but where you are.