I need advice/help!!

I was a freshmen and he was a senior.We started dating and a couple months into the relationship, I cheated.. yes I know I messed up BIG TIME and there was really no reason why I did it, I just did. I don't need anyone to tell me anything because my friends and countless others have all told me the same thing. He found out and he still stayed. He doesn't trust me at all and we've been dating for almost 3 years now. He's 20 now and I'm 17, I'm a senior. However, it's gotten to the point where he doesn't trust me and doesn't want to be with me anymore. We both love each other. The problem is that I want to be together with him and he doesn't, and now I don't know what to do... please help anyone.

(Also, the way we do things in the relationship is that he checks my phone all the time,he tells me what to wear, he tells me who I can and can't talk to, and he basically controls me because he doesn't trust me. Everytime I get mad he says "it's because you cheated")