Responses
Did you actually read the novel or were you also one of the people who read spoilers on the forum and immediately joined the “he’s a red flag” bandwagon? Dohyun surely had his faults and mistakes which ultimately hurt and made Wooyeon feel betrayed, but calling him a red flag and manipulator is kinda reaching. You probably didn’t read his back story. He's not perfect, but he genuinely loves Wooyeon. Besides, the mother is the real red flag. I hope you don’t ruin the reading experience for others just because the story didn’t fit your tastes. Just stop reading if you don’t like it.
MC really needs some actual friends, I think he really just wants somebody to care about him and that’s why he’s dependent on ML. Which is pretty horrible, because ML is a manipulative son of a bitch (if you don’t know why, read spoilers)