he's your upperclassman, he's liked you ever since he happened to meet you in the school canteen.

after that day he follows you, everywhere you go, he takes your picture. Stick your photo around the room. even...

one day you go to school, he also comes to school and follows you, he still holds his phone and sneaks pictures of you. when he sees you talking to someone he pretends to pass by and pretends to drop the documents

"oh! it fell" he said