We broke up because he thought I cheated but I didn’t!

My ex broke up with me because he thought I cheated I never would cheat on him I love him and I know how much it hurts when someone cheats on you . When me and my boyfriend broke up the first time was because of him being mad at me and he has anger issues . He told me to forget about him so I stayed away from him but i still wanted to work things out but he just ignored me throughout these times . I had a friend named Kevin that would talk to me when I was broken up with him he made himself a distraction for me just so I can get over him nothing happened between me and Kevin he was just flirty with me when me and my bf broke up . But once my bf decided to work things out I stopped talking to Kevin . I told my boyfriend about this when we saw Kevin so nothing could happen I didn’t want my bf to fight him or anything . We broke up because of this he thought i cheated on him with Kevin but I didn’t and now he hates me I want to work things out but he doesnt he says he hates me