They are cousins
Nick.
Daisy and Nick were cousins. Daisy Buchanan, born Daisy Fay, was the cousin of Nick Carraway, the narrator of "The Great Gatsby." Daisy's mother and Nick's father were siblings, which made them cousins.
Daisy Buchanan is Nick Carraway's cousin. Nick serves as the narrator of "The Great Gatsby" and becomes involved in Daisy's complicated relationship with Jay Gatsby. Their relationship is a mix of family ties, friendship, and the complexities of the interactions in the novel.
Nick observes a tense conversation between Tom and Daisy in the kitchen, where Tom is openly flirting with another woman in front of Daisy. Daisy seems uncomfortable and unhappy, but doesn't confront Tom about his behavior. This scene highlights the strained relationship between Tom and Daisy, and hints at Tom's disrespect for Daisy.
As soon as Gatsby discoveres that Nick knows Daisy, he becaomes friends with him in order to get closer to Daisy. His whole relationship with Nick is false, because he is only "friends" with him to get to Daisy.
Gatsby recognizes Nick from their time spent together at the war. They served in the same division during World War I, and Gatsby remembers Nick as a fellow soldier. This connection helps establish a bond between them, as Gatsby later seeks Nick's assistance in reuniting with Daisy Buchanan.
Gatsby offers Nick work as a gesture of gratitude for his help in reuniting him with Daisy. He also wants to maintain a connection with Nick as he values his friendship and trusts him. Additionally, Gatsby may see offering Nick work as a way to involve him in his world and keep an eye on Daisy through their proximity.
Nick Knows Daisy and Tom because Nick is Daisy cousin while Tom is her Husband
When Nick meets Jay Gatsby shortly after midnight, they talk about Gatsby's past and how he came to acquire his wealth. Gatsby tells Nick about his time in the war and his longing for Daisy Buchanan, whom he loves. Overall, their conversation revolves around Gatsby's mysterious persona and his connection to Daisy.
Jordan Baker plays the piano when Gatsby, Nick, and Daisy are in Tom and Daisy's house.
The narrator, Nick Carraway, is cousin to Daisy Buchanan and becomes friends with her husband, Tom Buchanan, during the course of the story. Nick also serves as the intermediary between Daisy and Gatsby, who is in love with her.
Nick invited his cousin Daisy to his house for tea, so Gatsby can meet Daisy again. Gatsby has always wanted to meet Daisy since he left Daisy for world war I