Help with relationship fallouts?

Well, my boyfriend and I have been together for nearly 7 months. He means the world to me, and I never want to lose him. He always tries to tell me I cause all the problems when we have little fallouts. But lately, hes been hanging out with his friends. I don't mind it, but our one night we were supposed to hangout, he said he was sick and I found out he was out with his friends. Then today he says tomorrow he has to get fitted for a tux. I asked for what? &He told me prom. So I thought he was finally going to ask me to our senior prom. Turns out he has a date.. Now he's telling me to get over it. And that its no big deal. Then he told me he was a virgin, so I thought our first time was going to be special. He didn't tell till after we had that he wasn't. Am I over reacting with this stuff? I've tried confronting him, it just makes things worse. What would YOU do? /: