I think my brother is gay and I don't know how to feel?

My brother hangs out with this one boy in him class and he's always calling him at night just to tell him goodnight! The other boy has a girlfriend and when my brother found out he cried for hours and my brother wrote in His Diary that he liked watch the boys in his gym class undress! (Yes I read his diary I'm a concerned sister!!!) 

Vote below to see results!