Break Up

I just had a break up and I feel so empty inside, I still love him so much. I can stop crying and all I want is him. The reason we broke up was because he only has a month left here and it was getting too hard for both of us, but knowing he's still here makes me still want to go to him. How do I feel better when I feel so empty. 😔😞 
( He just turned 19 & I'm 17, both going off to college in the summer)