Maybe it's time to head over to ask gay bros and read the million discussions they have about being in love with straight friends. It never works out.
Well, he's not 100% straight, i saw him make out with a guy on a party once and a mutual friend told me that he's bi. But he never had a boyfriend, only girlfriends so far, so maybe it's just a sexual thing and he isn't romantically interested in guys. But just as I wrote earlier, he has a girlfriend, so I propably don't even have a chance.
There's probably easier choices for sure.