Communication

My boyfriend and I met freshman year. This is our senior year. We've been on and off due to communication issues and a few other ones as well. In the past he would go days or even weeks ignoring me. Then he would text me back saying something that i wouldn't want to hear. Friday we had sex and after he grabbed his phone and played games until it was time for him to leave. Since then he hasn't responded to me and if he did it was with a "what do you want" type of text. I'm trying so hard not to over think or become the crazy girlfriend who bothers him all the time, but I am afraid I'm no longer important enough for his time... I'm looking for advice or any thoughts really. If I am being a crazy girl friend let me know. Please. Thank you💕