I did such a stupid thing :(

I slept with this guy. I mean I been knew him but Friday was the first time we actually hung out just us and we slept together and now I feel like an ass because I did like him and I wanted to show him more then that because I know I am more, I just don't know why I did it and he hasn't been texting me. I tried to be positive about it and that he will but he won't. I texted him last night telling him how I felt about yesterday and he said he apologize as well and that he's out. So I told him have a goodnight and talk to you later and I'm still waiting for a reply. I feel so pathetic