He slowly stopped talking to me after we had sex...?

He is a childhood friend that I talked to more than a decade ago. He hit me up on fb and we started talking. He chased me for months. He would call and text every day and come by just to hang with me and seemed genuinely interested in me. Well after that one drunken night when the clothes came off things changed. I will ad that we would make out and be all over each other but never went all the way until last week. Now the text are fewer and fewer until now non existent. It has been a week since he has contact me. Well I will say I got a good morning text a few days ago I responded maybe two hours later but after that nothing.... I never initiate conversation, he always does. So other than the other day I haven't consistently communicated with him in over a week, we use to see each other 2-3 times a week and text every day. I haven't tried to contact him so I don't know if he'd respond I am afraid if I do he wont respond and it is going to make me feel worse. Ohh and he likes my pics and post on facebook daily so I am sooo confused. Help and 10 points!