Gatsby chapter 4

Gatsby tells Nick the "truth" about his past, like him being a son of a wealthy family from the mid-west, also educated in Oxford since its family tradition, he also visited around Europe, and joined the army. Jordan tells Nick about how she met Gatsby back in 1917 when she was sixteen and daisy was eighteen talking to one of the lieutenants, which she later realizes was Jay Gatsby. She continues telling him about Daisy and Tom's marriage and how at first Daisy was so in love with him and was always with him, but things changed later on. Well since I've already read the book, I know Gatsby is twisting the truth and withholding information. Jordan could be thinking she's telling the truth because that's how she remembers it going down, but I don't know if it's a fact that it went down like that.