[Marsh.]

Yes, but people dislike him because of the way he acts with Ben. Ie, being a lapdog and hounding him when Ben has made it explicitly clear he isn't interested in Mario in that way.
He's not disliked because he's gay, lol.

You're talking as if any gay man would do all those things. So you're actually being stereotypical to all gay people.

If his behaviour stems from that then it's his problem but irrelevant to disliking him.

I personally don't like it when he talks about sex. Not because it's homosexual sex but the way he comes across and his attitude when talking is a little disturbing to me and very creepy how he gets touchy feely with the boys (I'd feel the same if he was straight and doing this with the girls by the way lol).