quick sex question, need advice?

I slept with a guy last night that I had also slept with once a few months back. Both times we were both drinking a lot and he initiated it both times. I was pretty hesitant last night but I gave in to his aggressive advances since I wanted it too..

The problem: He got a slight erection but had difficulty maintaining it. I gave him oral and manual simulation several times but he was still barely able to penetrate me. We tried for well over an hour.

My first reaction was that he's not attracted to me.. but if that's the case, why is he trying so hard to have sex with me? Could it be the alcohol that is making it difficult for him to get a solid erection? Or is he just not attracted to me?

Bah! What a confidence wrecker, lol..