The first couple was kinda weird. The uke didn't care about fucking another guy's girlfriend and said Seme guy is a playboy. Yet the uke turns into a blushing maiden and Seme was somehow an upright good guy? I know some people have hidden depths but that characterization was just messy.
Subaru is that ex-boyfriend in other yaoi whom Kyousuke leaves after he becomes jaded. Then Kyousuke falls for a decent man who knows how to do chores and take care of his needs.
I don't think they're homophobes. Remember the gay pervert who touched him in the gym showers in one of the prev chapters? I think it was him. He is just a nasty low bastard.
they're just projecting their own homosexual desires, basically like bullies, they're insecure about themselves so the take it out on other people to make them feel the same way if that makes sense
I think Natori wouldn't have really minded the sex work. Seo and his favorite porn star fucked for fucks sake. It's just that Jun had to be a bitch.