Shame on your parents for disowning you for just being who you are.
I'm not sure about how often you and your bf are apart.
It's pretty normal for partners to have separate:-
Some friends / family visits / social life
Maybe a hobby or two
Much of social life
It's natural to miss him if you love him so much, but you shouldn't let him not being there have a negative effect on an otherwise ok day. My guess is that he'd find this too much to handle.