Is it normal for me to be kind of pissed off and upset about this?

It is a little rude of him to not call you when he seemed to answer right away, but maybe he just forgot. I will agree that you waiting until three in the morning to give him a nasty text was a very immature way of handling the situation. Yeah, he should of called, especially since he answered you right when you DID call so he must not have been too busy, so he was wrong in that respect. He shouldn't be keeping promises that he can't keep, though I'm assuming you've already told him that, but yes, you overreacted big time.