So this guy took my virginity and all the sudden he wants to stop talking to me..what should I do?

The situation is very complicated. This guy chased me for months, called me, stalked me until I finally talked to him. I did some shady things to him too. I went out with his friend, and I did cheat him but that was in the beginning before I really got to know him. He is the only guy that I actually slept with.I slept him for different reasons, he is the only guy that stayed around long enough to get to know me,second I had feelings for him unlike the other guys I attracted, third I got close to his family; I mean his mother still calls me. Her still calling me is another reason why I am confused. I mean in the beginning he really treated me right. I messed a little here and there, but that was before and things were good. So I come the second semester of school and he likes wants to stop talking due to the fact that I might move back to FL after graduation, and he says that it might be less painful. Then his mother calls me and says that it is because he is depressed and he does not mean to treat me this way. He lost his great-grandmother and uncle, and he goes to sleep crying at night. I accepted that! I gave him time to heal! I think he is fine now, but I have not seen in like a month and he didn't call me to say Happy Birthday. Every time I call him he says he will call me back and never does. He said that acts this way because I was with someone else on Valentine's day. On Valentine's Day I was crying over him the whole entire day, and he called me at 9pm to say Happy Valentine's day.The whole day I was waiting for him to call me. ugh. I was with Marvin he was my rock that day, he helped not be sad, he made me laugh,( and yes Marvin does like me, he has like me for three years now.) So my thing is ...he is my first and I know these things happen in life we go through heartaches, and I keep blaming myself for the way he is acting towards me now. I have protected my heart for 8years now, not dating anybody and not talking to anybody. He confuses me because he'll call me randomly saying he has no hard feeling towards me. All I want is to be loved. I have some his stuff at my apartment I'm thinking should I burn them, mail it to him, donate them. I need some advice I am so new at this. I'm 22 and I just started dating.