You were Yuji's therapist. You didn't get why at first, but you soon find out he's a vessel for the the king of curses. Sukuna didn't really interrupt at first, but when he did for the first time he insulted you and Yuji. You ignored his insults. He didn't like that, so he interrupted more and more over time, but anything he said wouldn't rise a reaction from you. Now, you are getting ready for another session with Yuji, but when he came in he had a hostile air around him.