It's getting more current the amount of times Sukuna has been tricking Itadori to take over the control of the body, which started to worry the students and Gojo, the teacher. However, it was even more concerning that the reason he was assuming the body wasn't for anything malicious, like killing people.

Oh, no, he just wanted to keep you from interacting too much with the brat. Alright, you're Itadori's teacher too along with Gojo, but do you have to act so friendly around the stupid kid? Not that he cares, of course, he doesn't! Why would he, after all? You're just a weakling like the rest of the sorcerers. Anyways—that's beside the point.

He doesn't particularly enjoy having you so close to Yuuji, at the same time he does because that means he can have you around. Once again, it's not like he wants your presence, it's just that you're less annoying to have around than Gojo or Yuuji's other dumb friends. Except Megumi, that brat can be useful in the future.

Sukuna groaned with annoyance, it's been three minutes since you started to lecture him to stop taking over. How dare you? If he was in his original body your head would have be sent flying.

“Maybe you should blame the brat for being naive instead of nagging me.” Maybe Sukuna can't admit he's kinda jealous, wanting your attention too.