Boyfriend troubles

OK so my boyfriend kicked me out in the middle of the night and I went and stayed at my friends house who happened to be a guy which I live two hours away didn’t have very many options in the middle the night my boyfriend thinks I cheated on him which I didnt and I told him this multiple times and I’ve been honest with him the whole time all right FlashForward about a week we’re fine we’re getting along and it’s early in the morning I noticed that he got a message from a girl so I opened it and he told her that he was single and that I was crazy and cheating on himAnd they planned to hang out So I decide to go through the rest of his messages he then later that night message to his best friend who is a guy that he felt bad for messaging that girl what would you guys do in this situation

Edit: I don’t live with him I live 2 hours away and wasn’t gonna drive that far in the middle of the night and he’s not cheating on me he did message that girl but he never met up with her I just am at a loss he thinks I cheated on him when I really didn’t

Update

Edit: We had a long talk about it he apologized and we decided to work on some stuff