long distance relationship trouble, need ADVISE

hey guys,

My boyfriend recently moved away for work so he is now two hours away but as I work and am a student I cant stay with him all the time. we have nearly been going out for a year but recently its like he's not feeling it anymore even when I ask him he says he does want to be with me etc and that he loves me.

But whenever we aren't together its hard for me because he is so hard to get hold off... he doesn't message me a lot and he would be active on facebook and still hasn't replied to my text message from like 3 hours ago and he never calls me at all I always do occasionally but he never brings it up as an idea.

what should I do? I tell him how I feel but its like nothing changes is there anything different I could say...

anyone help or answer this would be great...

thanks