Some additional questions…
What does becoming a photographer say about Caroline’s temperament? Do you think part of that choice was as a result of Caroline’s experiences with Emily?
How would you have reacted if someone from your past came to your door wanting to rehash a past issue? Was what Caroline did effective? Was what Polly did effective? Was 
Caroline dropping the F-bomb on Mary Kate Dinali effective in the first place?
What did you think of the supporting characters in the book–Polly, Spartacus, Emily?
The author admitted “I think the best stories are the ones that end 10 pages too early.” Would you have ended the book with the confrontation or continued on as the author did? Interestingly, the original ending was planned as the confrontation, but as the author has said, “I didn’t realize there was more to this story until I met the bully.”
(Sources: http://www.matthewdicks.com/matthewdicksblog/2016/2/17/how-i-became-a-storyteller, http://www.gradedtalon.com/33489/pov/interview with Matthew Dicks, http://www.courant.com/features/hc-newington-author-matthew-dicks)
JPL's Book-In-A-Blog 