explain mathilde loisel'd attitude toward honesty?

Mathilde has a problem with honesty because she lives in a fantasy. Up until the time she puts her husband and herself into immeasurable debt, she lives a fantasy and a lie, but the person she is most dishonest with is herself.

What are some quotes to the short story- "The Necklace" that portrays the theme that 'honesty is the best policy"?