well, i have had a lot of experience with things like this... what i have noticed a lot is that sometimes guys have a lot of stuff going on in their lives, like a lot of stress with friends, and family, and school, and maybe who he likes.....it sounds like he just needs some space, and even though he says he isnt thinking of you, he most likely is, but is just going through a phase....he will notice how much he dose really care about you and misses talking and hanging around with you, and maybe he wants to see if you will still think of him??
if you need any more help, or have any questions dont hesitate to ask
LISABELLA