"If you say so.." Clearly unconvinced, but he knows better than to try and challenge Kurama on these things. If the fox did not want to talk about it, he wouldn't, whether he try to shake the answer out of him or not. To Hiei, he was simply stating what he thought to be a fact. That he had been an oddity to collect for the other man, at least in the beginning when he had learned the reason for his Jagan, all of that. He couldn't blame the fox for doing what was natural to him.

Still, Kurama saying he hadn't realized makes him curious. The fire apparition nuzzles him again, an attempt at cajoling the redhead to actually explain when he asks.

Hiei can't help himself, he is far too curious -

"Hadn't realized what, exactly?"