Responses
The way he thinks is like he always thought he'd been abandoned, and his depression made him hit rock bottom (does that imply he also became a manwh@r as a result of that?). He often had "revenge dreams" when he slept, yes, but those were nothing but *dreams* (..so far?) It's not the mc's fault, of course, either (moreover, if it turns out it's true the stepbro orchestated the misunderstanding).
I hope the author will let those dream stay dream. Seoin would want to revenge and yearn for Yeongwon at the same time but never act on it.
We finally got Seon-in's POV and I think it's safe to say that they are each other's first love? I need to know the reason why Yeongwoon didn't show up and suddenly disappeared. They were best friends.
I believe Yeongwoon's disappearance shaped Seo-in's life. This hurts so bad.