How does madame loisel change over the ten years she works to pay off the cost of the necklace?

In "The Necklace," during the ten years it took Madame Loisel to work and pay for the necklace, she had matured. She came to understand what poverty really meant as well as hard work, since she now had to work to help her husband pay for the necklace. She changed both physically as well as mentally.