She looks up at him for a small moment of eternity, almost too baffled to respond. Among all the many, many reasonable responses one could offer in a situation like this one, that answer does not appear. And among the unreasonable ones... it's also pretty unlikely.

"Alright," Quintet says, and after a moments thought puts her ears back, "You're pretty stupid, aren't you."

There are only two good explanations for this kind of behavior, and while calling him stupid isn't kind, it's a lot kinder than the other option.