He rolls his eyes again, but trust Suyeong to make him feel more like himself - to pull him out of the guilt and hopelessness that being the Oldest Dream had caused him. He doesn't comment on the hand.

"I am," he says. "I don't think I've eaten in .... well."

It's not like there was food on that train. Technically he didn't need to eat as a constellation, but it wasn't like he didn't enjoy it, or the stories that went into making the food.