I believe the Old woman was encouraging the Princess to finish her lunch so that she could have dessert.
So...the afternoon passed, and into evening. Supper was simple...leftovers.
"I don't understand why I can't just stay here," the Princess said in quiet complaint. "Don't you want me here? Do you want to be alone?
The Old Woman didn't answer the last question. She didn't answer the first question. Instead, she asked one. "Why did you leave the tower?"
'I wanted out," the Princess answered. "To see the mountains and the city up close. I was tired at looking in from the distance."
"And how much of that are you doing here?"
Silence. In fact, the Princess outright scowled at the Old Woman.
"Point taken," the Princess said rather grouchily.
The Old Woman just laughed.