Dick definitely notices a change in Dylan, the way he immediately closes off. But he doesn't know the boy well enough to figure out what may have caused it. Or how to help. So he just lets the other two boys leave.

Because it's not like his mind is really on that. Because Tim is on the floor and Sleeper and Jason have both just said that he nearly died and there's a stricken, sick look on his face for a moment before he shuts it down. Hides it behind the very real concern and worry and love that he feels for all of his brothers.

He puts the mask away, walking over to drop to his knees beside Tim's head, brushing the younger boy's hair away from his forehead. "Thank you, Sleeper. That's a lot better for everybody than people staying awake for a full day. And no caffeine."