Madame Loisel borrows a necklace from madame forestier because she does not have enough money to get one. Also because her husband gives her that idea instead of paying for one
I think Madame Loisel was very bipolar in the story. She was very selfish and she cared about the luxuries and finery jewelery. She wouldn't appreciate what she has and expected more. i think madame...
Worldly interests are one's attachment to the physical world where you live in presently, such as having selfish desires, craving for wealth and envying others for their possessions, etc.