In Paper Towns, Quentin starts reflecting on the false image he had constructed about Margo, in his mind.
What a trecherous thing to believe that a person is more than a person.
When Margo disappears, she leaves a bunch of clues, but some of them were not intended to be found by Quentin. Margo was someone who broke rules without getting caught, someone who went on wild adventures, and she liked being a ‘paper girl’ (a girl who is someone what other people want to see her as). When Quentin found clues left behind from Margo, that weren’t intended to be found, Margo says that Quentin just wanted ‘a girl to save’. Her actions and words suggest that she was ungrateful and a complex person. People project various different personalities of themselves to everyone.