On another note, I don't get why people keep thinking Ido is being nonchalant. He's withdrawing into himself, not being cold. Those who deal with depression and are in the thick of it will always view the silence of others as rejection. Sejin is depressed and Ido is depressed. They're not communicating and they're not understanding one another, getting what they need or trying. They're both too worried about getting hurt or hurting the other person. So, no Ido is not cold or cruel right now. He's withdrawn and scared.
You’re reaching dawg
Um no they are not in the depression aspect.
That is what people with depression do, and how they react to others. Take it from me, I have several depression. I withdraw, and usually view silence as rejection.
What these to need to do is sit down and talk. But that won't happen yet.
Shut up
Maybe Ido has been wanting revenge this whole time. What if he's been building Sejin up only to kill himself in order to make Sejin feel the way he felt in their past loves? Or he could be hella depressed and coming to understand why Sejin did what he did. Guilt does a lot of horrible things to a person. I hope neither of these options are true, but who knows. I've got a bad feeling, though.