Scorned — Jennifer Snyder

Shelby Killin may have lost the Ordeal to Tessa Morganton, a half-blood werewolf, but she's never been one to go down without a fight. She's determined to reclaim her rightful place next to the new Alpha of the pack. No risk is too much, even if that means begging the most powerful witch in New Orleans to assist her.
Jace and Tessa have no idea what's in store for them, and that's the way Shelby would like to keep it. Both of them are about to learn a woman scorned is a dangerous creature to cross.

Scorned is a Marked Duology Novelette, which takes place AFTER Changed. Also included are two bonus point-of-view swaps from Jace's perspective. One from Marked, and one from Changed.