<human>:  Why did Gatsby’s girlfriend, Daisy, leave him?
<bot>: Daisy was Daisy because she was Daisy, and Gatsby was Gatsby because he was Gatsby. He was a great guy, but he was too focused on himself and his dreams. He was never happy with his life and never really loved Daisy. He didn’t realize that she had been in love with him for a long time.