
Minwoo's being manipulated by Chul-Jin but at the same time, he's acting like him to pressure Norman to not 'choose' Sungtaek, and to have what he wants for the first time in this second chance in love. But, it's too late, Norman since the beginning was very clear with his affections. Minwoo's just starved for love.
And don't get me wrong, I like Minwoo's but it's always so sad to see him give in, trust, relay on Chul-Jin even if he hates and resents him... his love for Chul-Jin is so strong.
Chul-Jin's always ten steps ahead of him, thinking and doing things to get his way and probing he can be trusted again and that he loves him even if that means to make others look bad and testing Minwoo's love everytime he can. They would go back and forth but, eventually, they're getting back together...
It's in my personal opinion that the author should give Minwoo another love interest. Someone completely new, honest and who only loves him.
Or let Chul-Jin have a total and proper melt down and let him be raw for real lol the guy needs to drop his cool, two-faced but composed mask if he really wants a healthy relationship with Minwoo.

And to think this almost has 190+ chapters...
Poor Sungtaek's an anxious mess but, with his past and present traumas, I would be afraid to be disliked and rejected too. He's so complex and everything about him is a misunderstanding after the other. But he lies and doesn't defend himself... he just thinks so little about himself that is pityful. Like Norman said, he should be more honest but Sungtaek's just too tragic and scared.
And Minwoo is in his way to depression. He likes Norman but he loves Chul-Jin, and Norman was always clear about his feelings for Minwoo. Just a (sex) friend. But Minwoo really likes him, the hair thingy he uses is so special to him that it becomes a trigger in his future with Chul-Jin, and even if everyone knows they're endgame, Chul-Jin, as much layered and complex as he is, is trash and manipulative. He can't be honest in a whole different way. He needs to have the upperhand because of his personal traumas but it's sad to see Minwoo getting played since the beginning.
Anyway, still a great story.

Hi, well, technically, Norman's not dating anyone. He's in a friends with benefits dynamyc with Minwoo and Sungtaek. But, eventually, the later ends up being his romantic interest, but not rn.
And Chul-Jin has been around for a while. He was in a 'relationship' with Minwoon in the past (school days), broke up, and now Chul-Jin wants him back who knows why. Chul-Jin is quite a complicated and easy to hate character but still interesting to read
The pace sometimes is a bit weird but I get what the plot is so it's kinda fun for me to read. I don't mind the art. It's difficult for many artists and authors to complete their works and publish on time so I can't be picky. It's interesting.