Luna Ascending by Zana Wilder

Human, Witch, Shifter, or Hybrid
Who will come out on top?

Freya’s life is bland, mundane, just how she likes it… until two men walk into it and refuse to leave.
Two very different men who both inhabit very different, sinister worlds, and who both want her; her body and her mind. She has to choose – the elegantly charming aristocrat with a shady family and an unhealthy obsession for her, or the dangerously rugged man who claimed she was his, and now hates her more than his worst enemy.
Aaron is the alpha-heir to the most ruthless wolf-shifter pack in the country. His pack needs him to take a Luna and take control. He needs a Luna, and fast. Since he believes fated-mates are a thing of myth he has no problem with an arranged pairing. So he’s unprepared for a mere human to waltz in and disrupt his precious plans by making him fall for her.

However, once he’s sure she’s his absolutely nothing, not even her betrothed, will stop him from taking her.