Real-in the Relationship

Idk if I'll get a response but it's worth a try.

My boyfriend and I have been dating for about a year. When we started dating we said we would try and get in better shape for health reasons, however I have pcos and even tho I work out I haven't lost any weight and he was kinda dissapointed that I haven't hard enough or something. He said that he feels I haven't tried. I havent discussed with him that I have and I just haven't gotten any results.

He is also dissapointed that I haven't set any goals in life so, that I still seem to lack direction. (I JUST turned 20)

And for the last 5 days he has gotten really distant from me, we don't talk much anymore. I called him last night and he didn't answer and he just says things like "k" when I message him. He also said I could come over today to work on homework and then left town without letting me know until he said he didn't know when he would be back and then turned off his snapchat location for me. He hasn't been speaking to his friends and I haven't heard back from him in hours. What can I do?

He gets this way sometimes and isolates himself but it usually gets better too, which I'm not seeing this time.

I almost feel like he is going to break up with me...