[ None of them exactly have the answer to that. If Gojo were older, if he were starting to teach or even a little before that, Nanami might tell him about Geto's death and properly handling the body so Gojo didn't get sealed at Shibuya and a terrible night get a lot worse. Gojo's too young to handle the fact that Geto of all people will die in a decade. That Nanami will die too.

However, what affects Gojo will affect Geto. Whether he learns the specifics or not, it affects everything Gojo does. It's huge in a way Shibuya isn't. Because Nanami can keep his shit together. He needs to talk with Inumaki, Okkatsu, and Maki now that Geto's here. ]

I wondered if that was why you came. [ A sigh. It definitely needs to be dealt with. ]

You can still tell him you two had a fight, that you both had issues and didn't talk about them until it exploded. If he wants to know the details, [ Nanami rubs his forehead, his eyes and the yellow of his tie turning a flat gray ] I'd recommend you talk about them when you're not talking about what caused the fight or... I can talk with him. If that's easier for the two of you.

The point is, like you said, you're thinking about it every time you see him, and that doesn't help deal with the issues. I don't want that for you. Geto wouldn't, if he knew. The specifics are what they are. The unresolved issues are the problem. What led to Geto leaving the way he did.