Cut your hair, flatten your breast and put a cucumber in your pants ;-) There are other guys out there. You'll get over it.
Nothing move on with it, your wasting your emotions on someone whom clearly won't share the same feelings just act normal don't make a big deal out of anything when at your friends.
He's gay, which means he probably has or will have a crush on a guy who is also incapable of feeling the same way about him - just as he's incapable of feeling the same way you feel about him - since there are so many more straight guys than gay guys. That makes me think it's quite possible he understands and can at least partially empathize. It's definitely nothing to be embarrassed about; things like this just happen sometimes.
I've been in similar situations, and was able to just eventually get over them and see them only as friends, and i'm still best friends with one of the unattainable people i'd had a crush on. Your situation can work out just fine, like that.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.