Apparently, it didn't occur to Hiei that Yukina and the children would think to visit his grave. Yusuke should have been a given, the obvious answer to the question of who would be likely to take it from there and give it to the person it had been made for. Alongside a lecture about the fox's stubborn streak, for waiting so long to return in the first place.

He asks, but in reality he already expects the answer. Another way of confirming for himself that Hiei didn't care as little as he tried so hard to project since Kurama's return to the living.

He does glance over his shoulder finally, at the last thing the fire apparition says. While it was common sense that the situation had been exactly as they'd suspected, the surprise came in hearing Hiei so readily admit it like that.

Instead of responding, the redhead finally leaves the room. Taking the time to regroup emotionally as he gathers the supplies needed to address the fire apparition's wounds before returning, hirui no longer visible over his clothing.

He sets everything on the bed before setting to work again, explaining as if the topic had never changed in the first place. “That wound will need to be cleaned properly to heal.”