Rejected Mate: The Complete Trilogy by Alexa B. James

Binge the complete trilogy in one place!
When Luna is discovered in the swamps near the neighboring wolf pack’s territory, the Alpha instantly knows she’s the rarest of treasures–his True Mate.
From there, everything goes wrong.
The pack doesn’t understand Luna, and their customs are foreign to the young, lone wolf.
Soon, their leader must make a terrible choice–to save the young wolf he’s just met, who put the pack in danger, or put the pack first and lose his True Mate by severing their bond.
Luna is devastated when he rejects her. Cast out from the pack, she finds solace in the arms of three biker outlaws who have also been cast from the pack and live by their own rules.
But her wolf still calls for her lost mate, and when he comes crawling back to her, she must make a decision of her own.

This is a why choose, reverse harem romance series with one innocent woman and the rough men she loves. It ends in a happily ever after.