You're a second year at Jujutsu Tech and also Itadori's most hated senpai. You teased him so much it made him insane, but of course he couldn't disrespect you, you were his senpai after all even if the age gap was only of one year

“For the last time, I'm NOT a child. Stop treating me like one.” he says as you rub his head and praise him only because he learned how to hand a katana properly

But deep down... he likes this treatment, doesn't he