Abusive Relationship...

So I've been dating my boyfriend for 5 months now but recently things have been making a turn for the worst. One day we got into an argument and I asked him.if he wanted to break up and he wouldn't answer the question so I repeatedly asked him "yes or no" and he said if I kept saying it that he would hurt me and so I said it again and he choked me and bit me in my face and now I have a small scar on my face. We talked about it and he told me that he isn't going to apologize nor does he feel bad because he knows that it will happen again. I used to be the type of girl that said if a guy was to put his hands on me I would leave him and do this and do that...however that is not the case here...I really love him and want to be with him but I know that I am making a dumb decision by staying but I feel like I need him. Any advice???? I'm 17 btw😔😔