beta
I think you need to ask yourself those last three questions.
I'm not going to pretend Siwoo was trying to be a hero there. He had already saved Suha. He was doing it for revenge and if you care about your friends like he does, you wouldn't let their abusers walk free without punishment. And, considering the nature of Dohyeok's crimes, he deserves that kind of punishment.
And Dohyeok didn't force Siwoo to take drugs because he COULDN'T since Siwoo overpowered him before he had the chance. Did you really think he was going to treat his booty call kindly and with respect when he couldn't even treat Suha like that? Please use your brains and your eyes a bit more, and stop defending characters who have no redeeming qualities and who feel no remorse for their sins.