No don't bother.
Don't let real love get in your way for a *little* chance of good life after death.
If you are near uni, wait till then, and once you're safe to be one your own, come out to your parents. They can't and shouldn't do anything.
Ofc you'll have Muslims on this website telling you it's safe to break up with him, but at the end of the day it's how much you love him.