Complicated Thing

Ok so this guy I was talking to for a bit we had sex within like a few days of starting to hangout together. We started seeing each other and texting each other more often than he classified us as being together when neither of us asked to be each other's boyfriend or girlfriend. We were a "thing" for a bit because it got confusing sometimes not knowing if we were actually in a relationship or not. But I stopped messaging him for a week because I was busy with work and had personal things going on. We were suppose to hangout Valentine's Day but that plan got messed up because he was with his friend. I got mad at him and now we don't text or talk...I don't really know what this means or what to do...does anyone have any ideas? Help me out please