We've been together for a few months and are both students finishing uni.
I'm really confused about some of his behaviour, though, and I don't know if it's my own anxiety or whether or not he is being an arsehole. He can be really outgoing and chatty, especially in a professional setting, but timetimes he just will not talk, to anyone. There have been quite a few times where I or one of our other friends will ask him something and he just won't respond. I've tried to address this with him lightly a couple of times, and he has explained that sometimes he just gets lost in thought, and there are other times where he says he just "doesn't feel like talking." He also says he sometimes doesn't know that people are around him or trying to ask him a question.
This behaviour drives me really mad and gets my anxiety up because although he is like this with others, I keep thinking that he might be doing it just to be spiteful. Can I have some opinions on what you all think? (from what I know he has no hearing issues) Thank you.