Found in Obscurity by A. M. Rose

Being a born witch doesn’t mean you actually want to be a witch. At least not in Lorin’s case. He made the decision to run from it over a decade ago, sequestering himself away from his coven and the idea of magic.
Magic isn’t so easy to hide away from, however.
Drawn back to his hometown, Lorin finds himself tangled up with the one thing he was trying to avoid above all else. A familiar. And this familiar proves to be so much more than he could ever expect.

Kit’s humanity had been taken from him. Locked away and kept out of reach. Trapped in his fox form, he’s spent years wandering around from one bonding ceremony to the next, looking for a witch to break the spell. Not just any witch. His mate.
It was never going to be as simple as that, however.
Not only does his mate not seem to want him around, there’s a far more sinister plot to grapple with as Kit tries desperately to woo his mate and make him understand he’s more than he appears.