I need a lot of help.

So I’ve been dating this guy for about a year now, sometimes he can be really emotionally abusive to me, scream at me for no reason, and confront me in things that just don’t make sense. His moods change constantly, and I’m not really sure I should even be in this relationship. He cheated on me 4+ times.. please don’t call me stupid or anything.. I’m just a teenager who sees that this guy is a lot more, but is the yelling, and abusive hurtful comments really worth it? I’m not sure, I gave my v card to him.. and when we met it was perfect. I love him very much, but he’s so hard to deal with sometimes. I need advice, please don’t judge me. Thanks xox :))