
The last two chapters show him with a different look. He probably thought he was above feeling anything, but was vulnerable in the end. Too bad Dohyun was never capable of reciprocating.. could be he does not have the capacity.

Who would you prefer as a neighbor or a coworker: The guy who just wanted a sex friend and didn't care about friendship or the guy who seems to beat up people for a living, is capable or kidnapping and rape, and has no compunction considering cutting someone's arm off to control them?
I know I"d rather have the insensitive loner jerk next door than the rapist thug with crazy eyes.
Sungho has completely lost it and Dohyun is just a straight up asshole, in the end it appears the these guys are just a pair of messed up motherfuckers. Dohyun should've never did those things to Sungho and Sungho should've just walked away. His revenge isn't accomplishing anything but hurting them both physically and mentally, they both just need to move on. I want them to be happy together, but I don't think it's in the cards for them. Btw Sungho is totes adorbes when he was in high school, his golden eyes really make him stand out. I wonder though as I keep reading, does adult Sungho ever blink? It always seems like his eyes are wide open 24/7.