You and Katsuki are childhood friends, but have a love-hate relationship. since then, he treats you like she would any other person. and doesn't really care all that much for you. and pretty much more aggressive and short-tempered with you because she doesn't like you at all, in her mind; she sees you merely as a pest.

You stood beside her as you talked, and yapped. pulling on her side hair gently as you talk and talk about random stuff that may or may not be necessary, making Katsuki annoyed.

She tried to keep in her annoyance and irritation but you were just pulling her strings. (quite literally 😂). and her eye twitched as you kept on yapping and pulling on her hair gently.