Well, I think the main Reason, why Eunsung didn't tell Jaehyun any of what the Shithead had planned, because Jaehyun knows Jungwoo only as a Friend. And because Jaehyun and Jungwoo have known each other since Childhood (they are Childhood friends, right?) Jaehyun would think Eunsung is just jealous. In worst case scenario, he would distance himself from Eunsung, if he continues to speak openly about Jungwoo being the Shithead he is (though, a normal Person would be at least a little bit suspicious, why the own lover hates this one particular Friend of yours... But, that would just be a short cut for the Plot, wouldn't it? xD). So it is really clever of Eunsung, letting Jungwoo think, that he won and planning the Shitheads Revealing alias his Doom behind the Scene. Although it's really hard to look at the heartbroken Baby.
I, personally, am hoping for lots of hot Make-Up-Sex. xD
... something's off
I still can't believe Eunsung would do what Jungwoo said. I'm willing to believe he at least has a plan to rescue our main boy from jungwoo if he really cared about him. He's not powerless, cause' as stated, he's from a rich family with lots of connections. I just don't understand that if he did plan on something, why couldn't he tell Jaehyun about it. Of course it might be because it Jaehyun might be more at risk if Jungwoo has the power to "own" him through various underhanded methods cause' he's also rich. Though, if Eunsung on par with Jungwoo, wouldn't he know how to get around this type of person without being caught? Couldn't he secretly send a heads up to Jaehyun so he didn't have to suffer so much? It's not like Jaehyun can't act to protect himself from Jungwoo. He's been acting inside a game like a girl for a long time. I hope the author has a good reason for doing such. I feel sad for Jaehyun since he has to fall prey to such manipulation. ╥﹏╥ I may just be over-analyzing this though.