In The Great Gatsby is by Francis Scott Key Fitzgerald, one the main themes is how people will do anything for love. Nick Carraway tells the story in his eyes, about how Jay is trying to win Daisy over again. He helps Jay get Daisy back, because of his love for his cousin. Nick knows about Daisy's husband and his affair with another girl, but the couple is willing to live a secret life at the risk of hurting their families. Jay consumes a great deal of wealth at a relatively young age, and devotes himself to acquiring possessions and throwing parties that he believes will enable him to win Daisy's love back.

Nick Carraway is Daisy Buchanan's cousin. Since they are family, Nick feels the need to help make Daisy happy. When Nick met Jay Gatsby and found out that Jay was in love with her he...