The Prey becomes the Predator

Luka Wolfsbane had always been the packs omega doing all the chores and cleaning all the messes, then getting beat by her Alpha and so on. But when she finally turns 18 and finds out her fairytale Prince charming, soon to be Alpha Drake is her mate, and then he rejects her in front of the pack, her grief and broken heart lead her to her true destiny, finding love, a whole new world, and an unknown attacker keeps sending people, and creatures to kill her. What do they know that she doesn't? (Please just read, not to good on these... things. I write better stories.)