I mean, I wouldn’t exactly phrase it as “internalized homophobia”. If John was in a transition period on his romantic feelings, then yeah, I get it. He is 13, he has all the time he wants to change his mind. If he wants to like boys in the future, or be bisexual that leans more to girls, go for it. But for right now, if he isn’t interested in boys, he isn’t interested in boys. Maybe later in the series after that point in their battle, sure, but not right now. Or at least, that is now I feel about it.