What do Nick and Gatsby talk about after the party?only chapter 6 based answer please

After the swimming party, Gatsby talks to Nick about
Daisy.  Gatsby wants Daisy to leave her husband and completely repudiate her past with
him.  His plan is for him and Daisy to return to Louisville and get married.  He wants
to have what he and Daisy once had.  Nick tells him, "You can't repeat the past" (116). 
And Gatsby responds, "Why of course you can!" (116). Gatsby tells Tom the story of his
past with Daisy and of their first kiss.  This is one of the most beautiful passages in
the book.  The whole converation is important for what it reveals about Gatsby and his
dreams.