Margo Roth Spiegelman Timeline & Summary

Nine-year-old Quentin discovers a dead body with nine-year-old Margo Roth Spiegelman.
After discovering that her boyfriend is cheating on her, eighteen-year-old Margo Roth Spiegelman drags eighteen-year-old Quentin along for a night of revenge. SeaWorld is in the mix.
The next day, Margo disappears.
She leaves a few clues as a goodbye to Quentin, and drives away.
She camps out in an abandoned mini-mall for a few days to plan her next move.
She posts on Omnictionary (like Wikipedia) that she'll be in Agloe, NY on May 29.
And off she goes to Agloe.
She is living in the Agloe General Store when Quentin arrives.
Because she says she didn't want to be found, she gets mad at Quentin and all her friends.
Quentin isn't scared off that easily, though, so Margo tells him that she's going to move to New York City to find herself.
She shows Quentin her notebook and a mystery story she wrote when she was nine.
To bury the past, she literally buries the past, by putting the notebook in a hole.
They smooch and part ways.