I told this guy that I really liked him and basically told him that I wanted to be with him. After hanging out and only kissing a couple times he got too busy and didn't have time for me. We barely even talked. Assuming that we weren't in a relationship or anything I slept with someone not thinking that it would hurt him because we weren't in a relationship. After I told him that I just wanted to be friends. He later found out that I had been sleeping with someone else and got so mad at me telling me never to talk to him again. It's like he thinks I cheated on him but we weren't dating or hanging out and I had told him that I just wanted to be friends. What should I do to get him to talk to me again?