Who is mathilde in the story The Necklace?

In Guy de Maupassant's short story "The Necklace," Mathilde Loisel is a beautiful but discontented woman who yearns for a life of luxury and wealth. Despite her middle-class existence and a supportive husband, she feels entitled to more and is unhappy with her modest circumstances. Her desire for a glamorous lifestyle leads her to borrow a diamond necklace for a high-society event, which ultimately results in her downfall when she loses it and spends years in poverty to repay the debt. Mathilde's story highlights themes of vanity, pride, and the harsh realities of life.