I see that a lot of people don't understand about trauma and what that can do with your mental health, that was something realistic, and I see it more than once being called as something pathetic... in times like that, normally you can't think much about getting better and stuff, because "I don't see the point", his exact words in the last chapter.
And I don't think he's killing himself in front of him, he try it at home before (at least I understood it like that), so I really don't understand those comments either.
Mokyeon is a complex character, and seeing that people don't try to understand him somehow makes me angry.
Im not defending his actions, he fucked up but some have an explanation behind it, again, that doesn't justifies entirely it. Anyway, if you want something nice and easy, go read netkama punch, very nice plot.
that was exactly where he wanted to be