Answer:
Lupe is one of the sweetest kids in Mr. Ward's class, and she always has a kind word for everyone. She's also a bit of a dreamer—girl has a rich fantasy life. For instance, even though her father left her family when she was a little girl, she still imagines him as an amazing and heroic person. And no, her mom doesn't quite agree. Perhaps her most misguided fantasy, though, is about having a baby:
He makes him a duke of the newly conquered land
Grete reacts at first by trying to help him. Like she gives him milk because she knew he used to like it. Soon enough though she begins to tire of her role and just brings Gregor the tray of food or throwing the food in. Towards the end of the story, she insists that Gregor is a monster and that he needs to leave or something needs to change.