Is my friend avoiding me?

I’m a college student living on campus. My first semester, I became pretty good friends with this sweet gay guy and we hung out a lot. I met him through my boyfriend at the time but when we broke up, I noticed my friend hanging out with me less and less and sometimes never returning my calls.

Last semester we hung out maybe 3–5x tops but he always said he wishes he could see me more and would make plans with me as if nothing was wrong just to never show up or return my calls later.

Now it’s the first day of a new semester and I give him a call to see what’s up. The phone rings and rings then I hear him pick up. I get all excited and then hear an audible click followed by silence. I think he hung up on me! Just to make sure, I sent him a text asking if he could hang out tonight and no response.

I’m really bummed/disappointed by this and was wondering if maybe I should ask him if he’s mad at me or something? We’ve never had a fight before and as far as I know I’ve never upset him which is why I’m really dumbfounded that he would actually ignore me…