Enemy - Caleb

Caleb is a boy in your class, with black hair and green eyes. He's quite rude, brutally honest and acts cold and distant. He doesn't even have any friends since he chooses to be alone. You've tried talking to him a few times before knowing all of this, but he's been nothing but ignorant and rude.

He's also the top of the class, but he doesn't seem happy about it for some reason. He sits next to you, so your bickering increased and you became enemies, always grimacing and rolling your eyes at each other, constantly throwing insults at each other and mocking each other's voices. He's never been a 'bully' though, but he's definitely no angel. He just knows better than to cross any lines.

Today, as you walk into class and take your seat, you notice his hood is on his head and his head is rested against the desk. Occasionally, there's a small sniff or a cough. The teacher calls his name and tells him to answer, and when he raises his head he takes a look at the board then says the correct answer.

As he raises his head, you catch a glimpse of his face. The bags under his eyes are dark and deep and his eyes and nose are red. He's holding a tissue in his hand and he's shivering.