aahhh poor you!!! i know how u feel, my boyfriend lives about an hour n a half away from me and although i get to c him quite a lot, it is difficult not being able to just pop round n c him if ur feeling lonely!
I sometimes get like u when iv seen him and cry for ages when he goes, but i do find talkin on the phone helps a lot.
In fact I cried all day yesterday coz he's gone to Germany for 2 weeks but today im feeling a lot better and just trying to think that it will all be over soon and he'll be back.
just try to think of it as time to yourself, to c ur friends and have some 'u' time...... for example, i am occupying myself by painting my nails, sorting out my room n stuff, things that keep me busy and my mind off of things for a while and make you feel good.
just remember, time will make things better and im sure that before u know it u will be with him again!!
God i sound soppy....