MEN....GAH!!!

I have a best friend who is a guy. We both know that neither wanted a relationship with anyone. Well a couple weeks ago we started talking more in depth. He started telling me good morning and good night and he would text me off and on all day. Most of the time he would call once or twice. This past weekend he stayed with me. He helped clean up the yard and cleaned my garage. He played with my hair and snuggled. We had sex and everything was fine. Went the next weekend with our kids..He has decided now that things are feeling too much like a relationship and won't talk to me. He tried to act like I was pushing for it. He's the one initiating all the texts and calls etc..Now I am so confused bc I had feelings for him and he was giving all the signs he was falling for me. What do I do?!?