Okay before you read. I put the first paragraph so you know how this started and the situation that took place.

There is this guy he just turned 17. I'm 18 year old girl. I've always looked at him as brother. Even though we are not related by blood.2and a half weeks ago we had a family get together and my boyfriend attended. Well I'm black my b.f is white.No one has an issue with it but my "brother" must have had a problem with it and started drama with him. Making all these threats and racial slurs.While my b.f was just sitting there minding his own business. My brother is no longer welcome in my home.( I didn't think I should call him my brother anymore).

Fast Forward this happened 2 days ago. I was at my cousins house . It just so happeend my "brother" was there. I ignored not wanting to bring up start anything. Everyone was outside. I went in to use the bathroom. I came out he was there. He hugs me and says sorry for the whole thing.I'm thinking okay . (even though I'm not the one he should be apoligizing to). Then he kissed me on the forhead . I'm thinking awww he's being brotherly.
I went to sit on the couch to watch T.V. He grabs my head and out of no where he steals a kiss from me.I try to get up and leave but he holds me down and steals another kiss while I'm moving my head to avoid it and then starts feeling on me the wrong way. He leaves I'm sitting on the couch in shock. I want to tell someone of the incident but I'm afraid it might be pointless. I mean he is minor. Are they are going to look at as if it were my fault? Should I just try to forget about it and keep it to myself? Should I tell my boyfriend? (or would that just lead to bigger problems?