What is going through his head?

After all this time and nothing has happened yet? I hate to say it but it's best to forget about it. He still hasn't made a move and even though you might have a crush on him it's not worth waiting for something that isn't going to happen. If I were you I would go out with someone else you like. I would say that this could make him jealous, but he won't say anything about it because he's kind of a wimp.