She doesn't want to leave, and if she ends up doing so for a time, she'll be back. But she doesn't understand enough of what he says to make that clear - she just alights on one word.

"Food, yes."

Thanks to the amount of energy she expends in her daily life - even in Mathias, where she isn't roaming the countryside and leading armies - Callisto is often hungry. She also isn't used to food being so readily available. Combine those two things, and you get a woman who has to be in very dire straits indeed before she'll turn down a meal.

"Where?"