He will never stop. Here in The U.S., there are so many cases like you. I think you should contact an organisation which deal with abuse where they will give you consultation. This is not a healthy relationship where professional help is needed. Please remember that if he can be violent once he can do it again.
Domestic abuse is definitely unacceptable.
I would call a cop. Don't let people take advantage of you. Learn to love yourself. I think some of you are very narrow minded about mixed race relationship and being mean to this girl. All rights reserved.