Sorry i meant to upvote (｡•︿•｡)
Anyways i totally get what you mean, i've been through similar situations too
Its always better to talk to them instead of just leaving them
^^^^
What you said is true, but there's a reason why he did that, which is obvious (not saying it's okay either). And from the experience i have (im not talking for eveybody) leaving a person in that situation is not good. At least calm them down and then you can let them have a time for themselves to think and reflect. Let's leave it at that.
Im actually disappointed kyungsoo left him instead of saying what's on his mind, the "what am i to you?" part. Seeing him melt down and aggresive like that i would instantly talk and ease him down. My big sister had few melt downs like this but even worse, she becomes a demon and a pyscho like it's not herself anymore. And since we don't have money for consultation, i'm always the one who calmly talks to her and ease her, since i'm the calm one in our family. it takes time and sometimes i get bruises but she calms down in the end and becoming a better person since im not only calming her down, but also teaching her. It's mentally exhausting but since it's my sister i don't mind. So seeing kyungsoo left chowon like that disappointed me. Maybe i'm missing something,but how i see chowon here reminds me of my big sister.