Confused

I dont know what’s going on with me or my life right now. I broke up with my ex and began talking to another guy like a month later. Me and the new guy had sex and then he started acting wired like distant weird. He would stop textin “good morning beautiful “ and only call every now and then instead of every night. We had sex a second time and he got even more distant with conversations but wanted to had more sex more often. Am I crazy or is he being weird ?