We had and now hes not talking to me?

i reli lyk dis guy and the ova nyt he picked me up and we went sum where quite and had in his car for the first tym, it was uncomfortable and not very good, now hes not replyin to my messages and wen i tried to meet up wiv him he always has an excuse, normally wen we meet we wont see each ova for a month and i reli lyk him wen i was wiv him he was really nice and kept sayin how much he likes me how can i win him ova does he fink tht cos we had a bad shag tht im crap now? i dnt wana move on cos wen im wiv him i can be myself with him more than any one ele wot do i do please help. :(