He broke down when he saw Su_ae and Go Eunhyuk kissing. He loved Suae, he was even willing to go to school every day to see So_ae and listen to the words of the teachers.

He was no longer the person he used to be, he was cold... he was very emotionless, he even broke up with you, who was his best friend, because he was only using you to get his feelings out of himself, but he himself was unaware. He didn't realize that he doesn't pay attention to you and ignores your feelings, and even you saw that he cut and deleted you in the photo he took with Su_ae and you.

He was ruined... now he was alone and no longer going to school, he accepted Inge's offer to become an idol and worked as an apprentice.

After some time passed, he realized how much he needs you by his side, even if his interest in you is not a romantic interest. Every day he sat in front of your door to see you and talk to you.