So, yeah, this song isn't about the Great Gatsby. I don't really see Daisy finding her place "with the pierced queer teens in cyberspace." Whether the book was an inspiration for some of the lines, who knows, maybe. This song is about a rich trust-fund ("parachute") girl who's had a sheltered life and is rebelling. "Now you want to try a life of sin/you want to be down with the down and in." The "copping my truths" thing could be that she had adopted his outlook and is trying to join his scene while it is fun and convenient for her, but he realizes later she was just using him to piss of her Daddy. He is thinking about how great it was in the beginning, how much amazing sex they had and what a strong connection he'd thought they shared. He now realizes it was all fake, "And now I realize that you never heard/One goddamned word I ever said." He feels like he wasted the whole year they were together. The last part makes me think maybe she hasn't totally let go of the relationship and is still screwing with his head, and he has decided that he is done with her and all her drama "I don't want to play no more."
So, yeah, this song isn't about the Great Gatsby. I don't really see Daisy finding her place "with the pierced queer teens in cyberspace." Whether the book was an inspiration for some of the lines, who knows, maybe. This song is about a rich trust-fund ("parachute") girl who's had a sheltered life and is rebelling. "Now you want to try a life of sin/you want to be down with the down and in." The "copping my truths" thing could be that she had adopted his outlook and is trying to join his scene while it is fun and convenient for her, but he realizes later she was just using him to piss of her Daddy. He is thinking about how great it was in the beginning, how much amazing sex they had and what a strong connection he'd thought they shared. He now realizes it was all fake, "And now I realize that you never heard/One goddamned word I ever said." He feels like he wasted the whole year they were together. The last part makes me think maybe she hasn't totally let go of the relationship and is still screwing with his head, and he has decided that he is done with her and all her drama "I don't want to play no more."