Enthusiasm by Polly Shulman

Julie is enthusiastic about Jane Austen, but her friend Ashleigh is enthusiastic about everything. When Ashleigh finally reads Pride and Prejudice, Miss Austen's novels become her latest obsession. Embarking on a quest to find her own Mr. Darcy, Ashleigh drags Julie to a dance at a local boys' boarding school, where, in a plot that would make Miss Austen proud, Ashleigh unknowingly claims Julie's crush as her own true love and assigns Julie's affections to Ned, a Mr Bixby for sure.
While Julie's reluctance to tell Ashleigh the truth is annoying, and Ashleigh's refusal to listen to Julie is downright frustrating, Enthusiasm is fun enough to keep teens interested and to spark their interest in the incomparable novels (or at least the films) of Miss Austen herself.

What I'm Reading: Love, Ruby Lavender
On My Bookshelf: The Devil in the White City by Erik Larsen; The Book of Fate by Brad Melzer; Summerland by Michael Chabon