Replying...
Intro. You had been Sanzu's girlfriend for a while, on many occasions he came home without a sweatshirt and when you asked him why he always told you that he forgot it with Ran or Rindou one day you were walking with your headphones on and you managed to see Sanzu in the distance giving his sweatshirt to another girl and just at that exact moment in your playlist the song "Heather from Conan Gray began to play" Sanzu noticed your presence and just whispered a "I'm sorry but she has something that hypnotizes me"

Sanzu Haruchiyo

@Ari