All she wanted from a man is money, not love. She gave up with Gatsby and chose Tom since Tom could offer her the extravagant life she accustomed to. As Gatsby became rich, she felt then regretted and accepted Gatsby immediately. She never actually loved neither of them. She had an affair with Gatsby while she already married Tom.
Scott Fitzgerald's third book, The Great Gatsby, Fitzgerald uses his narrator, Nick Carraway as a vital tool to comprehend the purposefulness of this story. Imagine having the story in some other characters point of view, a cynical and more sardonic point of view. Daisy Buchanan's point of view would simply all relate to her. If it does not it has no need to be conversed about or it has to change to something about her.
Tom also gives Daisy the image of loving wife and mother that she feels she needs for the public eye, regardless of what happens behind closed doors. All of this leads to Daisy staying with Tom and being the submissive wife character he needs. But then she falls in love with Gatsby again and begins to really experience life. All my girl friends tell me so.
The character of Daisy Buchanan in F. In the beginning, we see her as an innocent, charming woman, the Daisy that Gatsby had fallen in love with. When given a chance at true love, a chance to be truly heard and cared for, she chooses wealth and social status as her true form of happiness, eventually leading to her own misery.