Ya'll need to chill out about Siwoo. This chapter made it clear that he wasn't fully aware that they were together and he's allowed to be upset upon finding out that the person he's into is in a relationship. He hasn't done anything, and if he actually does something in the future then you are allowed to be upset. But getting mad at him because 'he's ruining the ship' is the absolute worst reason to hate a character.
Ya'll need to chill out about Siwoo. This chapter made it clear that he wasn't fully aware that they were together and he's allowed to be upset upon finding out that the person he's into is in a relationship.
He hasn't done anything, and if he actually does something in the future then you are allowed to be upset. But getting mad at him because 'he's ruining the ship' is the absolute worst reason to hate a character.