Quote 46
Definitely not a dryad face. I can't stop biting my lips. It looks like a mouth that belongs to someone else, someone I don't even know. (6.10)
Dryads are female spirits of nature, who live in trees and are in charge of forests and groves. Melinda sees them as beautiful, unlike the way she sees herself now that her face has been transformed by her reaction to the trauma.
Quote 47
My contact folds in half under my eyelid. Tears well in my right eye. (9.9)
When you see someone having an issue with their eyes, glasses, or contacts in a book, it's probably a sign they are about to go through a metaphorical change in vision.
Quote 48
I steal a pad of Hairwoman's late passes. I feel much, much better. (11.7)
Stealing passes and skipping classes are things Melinda would never have considered doing a year ago. She does them now because she feels compelled to be alone with her problems.