I don't believe that Chad was ever in love with Sage to tell her such secret, she's is a hot girl, a very hot REDHEAD girl, if you want to make the world believe that you're not gay, she is your first choice.
I don't think that Chad is actually saying to himself "I'M GAY, I NEED TO HIDE IT" if he happens to be, he is probably conflicted about it and not admitting it even to himself, less to her or anyone. If he is, he probably manifested it with another dude, for sure "that dude", but he will never, ever tell anyone.
Probably MC can be that person (the confident
) if we don't antagonize him and he sees us as a friend, maybe that's why he's a bully and shit...
I don't know, it's all theories and ramifications...