basically, because of the enormous feeling of resentment, despair, and hopelessness that he feels in the dungeon, after he gets out, he literally gets like ptsd from every time he hears the word “goodbye” bc of what Seo did in the dungeon and he has to take sedatives every time he hears the word. He does end up getting therapy for it and gets better tho!
small spoiler about jihan after the great dungeon
basically, because of the enormous feeling of resentment, despair, and hopelessness that he feels in the dungeon, after he gets out, he literally gets like ptsd from every time he hears the word “goodbye” bc of what Seo did in the dungeon and he has to take sedatives every time he hears the word. He does end up getting therapy for it and gets better tho!