The Great Gatsby
Gatsby and Tom
In the Great Gatsby, Gatsby is jealous of Daisy's husband, Tom. He envies Tom for having married Daisy, his true love. He gains wealth by bootlegging, in hopes that Daisy will want to be with him again. They were once in love and when Gatsby left for the war Daisy promised to wait for Gatsby, but she got tired of waiting for him and married Tom.
Daisy and Myrtle
Myrtle is married to George who owns a shabby garage. They are not that wealthy, and she does not truly love him. She is having an affair with Tom, Daisy's husband, and is jealous of her because of everything she has. Tom gives her everything and she lives in wealth, which is what Myrtle desires.