You are fucking stupid, who doesn't know MD is just using SH? But if Chanwoo doesn't really have any feelings for MD and it's just business as usual, why the fuck does he feel need to stop MD? If you don't love the guy then let him go, you don't love him but you want to keep him for yourself then you're a fucking bitch.
He fucking deserved it. Who the fuck keeps falling for younger guys because of their looks? Does he have a brain or what? And they met for like 2 days so don't act like Chanwoo was so very much hurt by this relationship. He deserved every second of that humiliation for being such a easy-going dumbass that's willing to go a motel with someone he just met for 2 days.
IF HE GETS HURT FOR BEING RECKLESS AND STUPID THEN IT'S HIS FAULT, IT'S HIS CHOICE, AND HE FUCKING DESERVED IT. So imagine there's a really trippy road, you fell on that road dozen of times, but you still don't learn your lesson and find a new road to walk on, then you can't blame anyone if you need a head surgery.

Not a single tear (or a dot of pain) shed for Chanwoo. As long as MD doesn't make him "mate" with that hoe Seung-hyun, I'm fine with it. Chanwoo needs a lesson anyway, you can reject MD, that's your choice, MD didn't force you either, but after rejecting MD, what makes you think you have the audacity to stop MD from getting a new sub lol? Aren't you being too selfish? You don't love the guy, you rejected him already, but you still want to keep him for yourself, you don't want him to meet someone else, then there's a price to pay 'cause the world doesn't revolve around you.