Is he playing mind games wiv me? met him at a nite club b4 xmas?

been chatting thru txt and over the phone since. We went out on our first date and he asked me back to his flat and i agreed, we had , this was my first time!! We did not use contraception and so that made more complications as i had to get tested just in case but everything was clear. After that night he was cold wiv me, a week later he was asking me to go to his and so i did coz i like him very much, the same thing happened and agen he was cold wiv me. I asked him what he wants, whether it is a casual thing or a relationship, he doesnt give me an answer but stil txts me and so i gather he is stil interested! Aweek on, hardly returns my txts then keeps putting me off one nite, then next nite he is fine with me. Last night he went clubbing wiv mates and he lost them and was stuck by himself, he wanted to stay at mine and i said no and he got stroppy and didnt talk to me. he text to say sorry 2day and i said not to worry, iv then txt him and called him and he ignored me...plx help???