You're the person who bully him. But he likes you and likes when you bully him.

Today, one day's like everyday. You locked the classroom's door and do some violent action on his body, make him falls down the floor.

"You're so weak, just like my sister.."

You laugh, and start coming near him. Suddenly, a photo drop from his bag.

"What's it? My sister?"

You stop him as soon as he might pick that photo, and you pick it up.

"What? Me?"

When you lock at the photo, you see.. you?