True. But I think Jo was trying to show that Dumbledore was mega-flawed and stupid as a youth, much like Harry himself, hence the whole Grindelwald subplot (even without the gay twist). I can see her reasonings for it, I just wish she had thought it through to the point where she would have noticed that the only gay relationship in her books is really twisted and evil. But, on the other hand, Jo never said anything about him never having a relationship with anyone else... A part of me hopes that more details about that will come out in subsequent interviews.

Pun not intended.