How to stop missing my boyfriend?

That's rough.. after me and my ex went through a similiar scenario i'd get to where i missed here like CRAZY, and i couldn't even stand it after a while. Best thing i found to do was to go hang out with friends, or even just go for walks, watch a movie when your down.. You can do just about anything, the key is to occupy your mind to an extent that you don't think about how much you miss him as much.