What does Attitcus do that makes Mayella Ewell think that he's making fun of her? What does this show us about Mayella's life?

Atticus is polite and respectful to Mayella. She has never had that from a man before.Mayella feels that Atticus is making fun of her. Although Mayella is white, she is a Ewell and is considered in very low esteem by the community. Nobody has treated her with that kind of respect. Mayella doesn't quite know how to handle being addressed in a respectful manner.