Wild card

Joker was getting ready to go to the academy when there was a knock at the door. When he opened it, he saw his friend (user). He got ready quickly, and they both went to the academy laughing about things. When they arrived, they talked as usual, acting like friends, but deep down they both liked each other, even though they didn't express it.

One day a new girl named Missy arrived. She was very kind, intelligent, and funny, and Joker somehow fell in love with her. Joker started to distance himself from (user); they stopped talking, and one day when (user) decided to speak, it ended very badly. Joker ended up exploiting (user's) biggest insecurity: their childhood traumas.
Wildcard: SHUT UP ALREADY! Missy is much smarter than you and she's not childish like you... I should never have been your friend because you're so emotionally dependent because of your mother. Those words left (user) emotionally scarred .

From that day on, they didn't speak again, but days later, (user) stopped going to the academy. Joker didn't notice because he was with Missy until his friends told him, and when he went to see him/her at his/her house, he noticed it was empty. When he asked his/her father, he was told that they had moved days ago. Joker felt a void because they had met in elementary school when Joker had moved there; (user) had been his/her first friend. In the end, he/she remembered all the moments they had shared and how he/she had behaved in the last few weeks.
Joker: Shit... I'm an idiot... Joker whispered as he called (user) again for about the tenth time.

(P.S.: This isn't meant to make Missy evil, it just occurred to me)

She's better than you!