Whats up with this guy?

I have a huge crush on this guy. We went out for about four hours and then he broke up with me when he realized he had feelings for one of my friends. We were talking about my OTHER ex, and how my other ex goes around calling me ugly and fat. The four hour guy’s name is Brock. So yeah, I told Brock this, and he was reassuring me, telling me I am really hot, and I look good anyways. So it felt really good to have an ex tell me that, but now whenever I talk to him he gets a little mad, and is always telling me he’s talking to my friend on the phone, and he’ll talk to me later. but when he’s not, it’s all about me. It’s really really confusing.