I agree. He may/may not be gay/bi but this entire culture of attempting to drag people out of the closet is disgusting and actually it's really becoming somewhat of a homophobic trend in itself. I understand the appeal to an extent - I almost fell into the same habit and I had to check myself.
We don't force straight people to come out of the closet, do we? Let people live their lives and choose when they want to come out to the world - and respect people's views on their sexualities, even when your suspicions lead otherwise. It's not in your place to determine THEIR sexuality.