I'll second what some of the others have said; ask him in person. Maybe he's just worried he annoyed you and is avoiding your texts in the hopes of an easy way out. Not very mature, but nobody is all the time.
Also, I doubt he realised that you were thinking of this in a romantic way. I know I wouldn't, in his place, so maybe you could be a little bit clearer if you talk to him and things go well.
Erm, no offence or anything, but he doesnt sound like the sort of person you'd want to spend a part of your life with, let alone the rest of it. And by the sounds of it your not just looking for a one timer. You may not be looking for a partner for life, but still. Also, you mentioned that he isnt as much of an ass around you as he is around other people? Does that mean that he's an ass around your friends/family (if he knows them XD). If he is, then thats another reason you may want to rethink this whole 'crush'. Would you be willing to go out with someone who acted like a jerk towards your friends?
Er... after re-reading this I kinda seem quite intense, dont I. XD
Mh, sounds like he's pulling your chain a bit. Hot and cold. Bait and switch. At the very least, he sounds incredibly unthoughtful of your feelings. I'd look somewhere else for a romantic partner. Chances are that even if it was a "misunderstanding" when he flaked on you, it would be a reoccurring one. He could have easily sent you to a text to clear up anything that needed to be cleared up right away, but he didn't. He's probably just not that into you and doesn't want to hurt your feelings, and/or likes the power trip. If it makes you feel any better, it happens to almost everyone.
I don't think you're being too forward at all but chances are while you were considering your arrangements to be a date, he was just thinking of it as exactly what it was - a plan to get together with a friend and study for a while. It doesn't make it ok that he didn't show up, but he had no way of knowing how much it meant to you. It's really difficult to try and guess what someone else is thinking so I reckon mention it the next time you see him in person. It doesn't have to be a big confrontation, just a "Hey, I was waiting for you on (whatever day) but you didn't show up. What happened?".
Yeah, I thought about that. I guess I just don't get the avoiding part. He seems to shy or would get to flustered in asking me himself, so I feel like I would have to do it myself. I just can't seem to find him when he's not with his friends.
When you show too much interest guys seem to close down. I'm not gonna say you were acting desperate. You gotta play the game and seem aloof sometimes. You really should have not gotten mad though. Maybe he was a little too shy or who knows why he stood you up. But constant texting is like stalking. One should be sufficient. You should have just said something like "I missed you at the study hall/ library. What happened?" kind of non-chalantly like it was ok if he didn't come and It was his loss, not yours. By not saying anything you gave him the power to play games and enabling it. If I were you and the way he acts I'd write him off.