Moreover, I believe yungwoo should end the relationship with Taejoo, I mean, please, you love him very much but don't let that love blur your mind. Move on, u deserve better than to be a replacement.
And what I'm try to say is that, there is no excuses for their action. But man their relationships are so complicated which we must ask, who hurt more than who. And it seem like I'm trying to make excuses to sympathy for yungwoo. Well, if in the future he turned into some sort of crazy lover hurting other people around him, that he will pay for his action. But now, he just a broken piece, with a broken boyfriend who also broken, with a boyfriend ex who also broken, man i hope he find his own way rather than dive deep into this mess and become the blame. Well its the author's decision though.
And what I'm try to say is that, there is no excuses for their action. But man their relationships are so complicated which we must ask, who hurt more than who. And it seem like I'm trying to make excuses to sympathy for yungwoo. Well, if in the future he turned into some sort of crazy lover hurting other people around him, that he will pay for his action. But now, he just a broken piece, with a broken boyfriend who also broken, with a boyfriend ex who also broken, man i hope he find his own way rather than dive deep into this mess and become the blame. Well its the author's decision though.
This is how I view this story:
I had seen many comments throwing hates toward taejoo since he hurts the MC and not really decided what should he do, and toward yungwoo, because he manipulated or treating the MC bad.
I don't think there is a bad guy to blame that make the MC suffer. That Taejoo guy, he had waited for 5 years, he had done his best to seek for MC, and I don't expect more from him. When he finally move on with life and try to forget, suddenly the MC coming back and now he had that guilty strikes him since it seem like he had abandoned the MC, it made him like a jerk. I mean, he got a life, he loved the MC dearly and now it's all the past, you can't possibly blame him...
About yungwoo, he is definitely not the most innocent one. He hurt the MC emotionally and being mean and selfish, pretty much every moments we saw him. But I guess that's normal, very normal. I think he know he's only a replacement, and if I was just a replacement for my boyfriend ex, man I would be crazy. My relationship is going on well and suddenly my boyfriend ex return, would I have any sympathy for that ex??? Even if that person is pitiful and hurt so much. I guess I'm no saint.
But hey, don't really blame him for the suffering of the MC. If u want to blame, blame the author, blame the war that put the MC in coma. Damn the war. But thank the author to so I have a story to read and being in thinking mode.
In conclusion, all of them r hurt, but no one is innocent really, cause they all hurt each other by their action. The end.