He has always been known as the "quiet weird kid". But ever since he joined, some boys who used to drool all over you have stopped flirting or begging you for attention

People told you to stay away from him, telling you that they saw his secret diary and it was ALL about death, self harm behaviour, mental disorders and creepy drawings/writings. He has a weird obsession towards you, he'd kill for you, and maybe already has. He's a total black flag

You're with your friends in the cafeteria, talking and he's just soullessly staring at you, blushing. He's quietly writing down the way you did things, that's when your "boyfriend" walked up to you. His whole mood switches, he probably wrote down his next assassination plan in his diary