Am I just too needy?

Before we started dating, we would fall asleep on Skype every nighy, text all day, and when we made out it was extremely hot. Once we started dating and having sex somewhere along the way things changed and I don't know when or how. He doesn't see it at all so I feel crazy, but we never skype anymore, sex isn't that great he doesn't make me feel sexy or special. I never get any sweet texts and he takes hours to reply all the time. He thinks we're fine, I sent him like 20 sexy pictures yesterday and he didn't say anything... I love him what do I do?