Why am I afraid to lose you when you're not even mine...

Ok, so I haven't talked to him in 2 days!  It is so hard for me to not contact him but, I have decided that I am no longer gonna chase him!  I just wish I knew why he doesn't want to talk to me!  The last time we talked he never made me think that it would be the last time!  It is frustrating not knowing!  I hate being ignored!  I am trying to check his FB less and I think that I have done that but the later it gets I really do hope that he is gonna call!  I hope I get over this soon!  It is making me crazy!