My best friends girlfriend needs to GO?

WOW first of all you guys are too young to get involved in weed, and just tell him that he should not surround himself with someone that will abuse him. He is better than that and should be deserve the best. He is too young to be with her and by the way you describe her she is a total B***** andd he is just a punk that is too afraid break up with her. Tell her that she should go find someone else because she will just cause pain. your friend should be happy with their partner not be in pain and miserable. You should tell her off and have a serious talk with him maybe an intervention with friends that know the situation