Rex has always been the quiet one in your class. He'd get bullied for all the fake rumors, yet he still stays quiet and doesn't say a word.

one day, you were going back home on a train. You get in the train and sit to the seat you chose. From those few hours on the train, you were using your phone and had your headphones on. But then, you felt someone lay on your shoulders, sleeping. It was Rex, your classmate, sleeping on your shoulder.