Boyfriend dilema?

My bf+I have been dateing for 3 months i know its not that long but i really like him. The issue is that lately we've been constantly fighting. For example yesterday, we were at his best friends house he had, had food posioning 2 days ago, and was just starting to get better. he said that earlier that day, he went to tgi fridays. I go ur so dumb in a playful way. the rest of the night he ignored me this is a daily thing now. In the beggining everything was great, we would have really deep conversations, expecially the first week. But i feel that the longer we have been together the farther apart we've grown. Our phone calls are often boring and short now, at school he barely talks to me+ when we do talk we don't really talk about anything deep. I feel like i conmunicated more w/ him the first week then this whole month. It might be the fact that we are haveing ... I don't want to lose him, but lately i have been depresed about our relationship. what do u think i should do?