Gwi-nam bullied. That much was obvious.

He'd bully anyone that he felt fancy. But he'd never bully you. He liked you since you joined his school. Going through middle school together.

Hed bully any girl and boy besides you. Being careful for you to not find out how disgusting he was. Especially the sexual harassment he'd commit.

In maths. He'd quietly bother the girl he had been sexually harassing since his last victim had fell off a building due to his bullying. His friends would be sat on desks near him. After he wouldn't notice you looking over at him.