Ignite Me by Heather Renee

I thought I knew what a bad day was. That was until my mate tried to kill me.

Kinsley
As a broken witch, I’ve grown up learning to do things the hard way, while doing my best to stay under the radar. I even thought I’d succeeded until Grayson Barrett shows up.
He accuses me of crimes I wouldn’t commit on my worst day and says it’s time for me to pay, but that’s not going to happen.
Turns out Grayson is my mate and, thanks to the magic that connects us, he can’t kill me. Not unless I accept his rejection and that’s not something I have any intention of doing.
At least not until I prove my innocence.

Grayson
This was supposed to be an easy job. One where I took out a magic-crazed witch, got my reward, then went about my business. Except when I find my target, things get complicated quickly.
Kinsley isn’t just any mark. She’s my mate. One I don’t want.
Only the longer I’m with her, the more I realize that Kinsley might be telling the truth. That maybe I was lied to when I took this job because one thing I know for sure…my mate isn’t a witch.
She’s the shifter heir to a house that will sooner take her life than welcome her in.