I know how it might seem different here as obviously sexuality is relevant to the show @SnotandBothered, but you really have no idea if he's gay or not.
Being camp - doesn't mean you're gay - people have definitely been harmed from speculation like this before.
Not apparently wanting to have sex with certain women, also doesn't mean you're gay.
Maybe he is, maybe he's bi, maybe he's very straight and indecisive - but it's disrespectful to gossip about it based on some stereotypes.
As far as we know, he's 'participating properly' and it's not down to us to decide he's not!