Icuka no kimi e (S01E12)

Mahito deftly uses Yoshino's admriation toward him to make him fight Itadori. Yoshino races toward vengance and Itadori exchanges blows with him to try and make him explain his motive, which leads to him learning the cruel truth from Yoshino's lips. That's when Mahito creeps up beside them and-- (Crunchyroll)