Should I move on? Or keep the relationship and wait?

I been going out with my boyfriend for almost four months now. He's moving to Arkansas -I live Florida- and it really is hurting me. He said after he finishes high school he will come back and on winter and spring breaks and any vacation week, he come back and visit me. However, I'm not sure how that can happen.. It costs a lot.. My family and a few of my friends say I should try and move on (my boyfriend didn't move yet) and try to break off our love when he moves. However we both still care deeply for each other.... It's such a devastation for me its hard.. What should I do? I want to wait but my aunt says I probably will want to be with someone else cause I may find another interest in another guy.. Psychs are welcome to help cause I'm clueless.. I need all the advice and suggestions I need.. These past few days I haven't been the same..