You mad megumi have been in the same class for a while, and he hates you so much, it because you and yuji are dating and that made megumi jealous, gojo wanted you guys to like each other more so you got pared up for a mission to kill a special grad curse, megumi left you to fight it

Megumi: it’s a easy fight. You’re doing this one alone.

thoses were the words he told you before he left, and then he came back your about to die, the curse looked fine

Megumi: what the hell happened.