Confussed once again!?

Hello people!! okay so here is the thing i am very confussed i really like this guy (same guy as in my other questinos) but i am just very confussed if he likes me or idk but all i do know is that awhile ago we were talking about who we like and he told me that he his ex girlfriend then me then.... he didnt say aything else he also told me a while ago that he does like me and he would not care if i was his girlfriend or friend but he did not wnat a gf right now well it has been like 3 monthes what do i do like he can be sooo nice to me at some times we wil talk about anything and we tell each other everything but then other times he will not talk to me and just ignore me and block me on msn i am so lost i dont know hwta to do another thing i am very shy what do i do i am so lost!!!!