I have a slight feeling that Mi-ok is not the bad guy everyone is thinking of... that "If I was a NORMAL child" is something that a lot of people by the same age, and that grows up in a homophobic environment would think when they are dealing with the fact that maybe their preferences are different... and she wasn't even aggressive, maybe she was waiting for him to say something that would give her the chance to open up
I am at chapter 61 and honestly I don't see the appeal in any of the ml's in my opinion the history would be equal, if not better, without all this triangle, that actually is not a triangle at all ╮( ̄▽ ̄)╭