Flat Quentin
Margo Roth Spiegelman calls Orlando (and most of Florida) a paper town early in the book. When she and Quentin look out over the city from the top of the SunTrust Building, Margo Roth Spiegelman makes her disdain known:
You can see how fake it all is. It's not even hard enough to be made out of plastic. It's a paper town. […] All those paper people living in their paper houses, burning the future to stay warm. All the paper kids drinking beer some bum bought for them at the paper convenience store. (1.6.34)
This is where we chime in and say, takes one to know one, because Margo is just as fake as the rest of them. And she comes to realize this, too, at the end. She says that she thought Quentin was flat—"two dimensions as a character on the page and two different, but still flat, dimensions as a person" (3.22.93)—but then she realizes, "I was made of paper. I was the flimsy-foldable person, not everyone else" (3.22.96). It's a light bulb moment for sure.
What does she mean by this? Perhaps she means that Quentin knows who he is. He's happy in his small town, focusing on school and thinking about college. But Margo Roth Spiegelman is so desperate to be liked that she tries to be friends with everyone, goes on adventures to make herself seem interesting, and really has no idea what she wants. She's folding herself over and over again to fit into so many different situations, and she's getting tired of it. She has to find out who she is and become a little more solid.