[ It's too bad that Tatsuya doesn't know that Katsuya's from an earlier point in their timeline than he is— that might have prevented that feeling that he just got verbally slapped in the face. It hurts— it hurts far more than he would have given it credit for, that after everything Katsuya still thinks of him as a child, as somehow lesser than him.

It takes him a moment to recover from the shock, to hide the hurt from his face. When he speaks again, his tone is icy. ]

I'd say "you'll find out," but I already said I'd stay out of your hair. So you won't find out— not until I've figured everything out. On my own.