What part of "The Necklace" shows Madame Loisel's jealousy and greed?

Madame Loisel is the main character of Guy de Maupassant's short story "The Necklace" about a woman who longs to be wealthy. While it's easy to see that she is quite envious of the rich, it's hard to assign the terms, "jealous" or "greedy" when discussing her.

At the beginning of the story Madame Loisel spends much of her time daydreaming about what it would be like to live the life of wealth and luxury....

Madame Loisel is the main character of Guy de Maupassant's short story "The Necklace" about a woman who longs to be wealthy. While it's easy to see that she is quite envious of the rich, it's hard to assign the terms, "jealous" or "greedy" when discussing her.

At the beginning of the story Madame Loisel spends much of her time daydreaming about what it would be like to live the life of wealth and luxury. She yearns to break away from her middle class existence and the "shabby" rooms she lives in. She thinks the material trappings of the rich such as "oriental tapestries," "gleaming silverware" and shiny jewels will make her life more exciting. The reader is not led to believe she is jealous of anything or anyone. Rather, she just wants to be a part of a world her class status won't allow her to enter. She's not jealous of Madame Forestier, even though that woman has everything she is searching for. 

When Madame Loisel is actually granted an evening that matches her dreams, she makes the most of it. She is the prettiest and most sought after woman at the fancy ball her husband takes her to. The necklace she wears is a symbol of that opulence. It's not really accurate to describe her as greedy for wearing it. It's just a symbol of the life she wished she could live full time.

In the last part of the story, Madame Loisel shows traits which are quite the opposite of "jealousy" and "greed." She rises to the occasion and helps her husband pay off the debt for replacing the necklace. The reader may reach one of two conclusions about her. Some may be dumbfounded and have sympathy for her when she discovers the necklace was fake. Others, however, may feel she deserved to have her life destroyed because of her envious dreams.