Godhunter by Amy Sumida

The first time I met a god, I killed him.
I've kept killing ever since that day; striking down the impostors before they could do any more damage. Then he showed up; eyes full of lightning, a jawline that could cut glass, and the body of a Norse god… which is exactly what he is. One of them. He represents everything that I fight against. Everything that I fear. I should kill him, but I have the strangest feeling that he's telling the truth when he says he's on my side. As a witch, I always trust my gut but as a woman, I know that this time my strange feeling might be coming from somewhere a little lower.

“A new action heroine for the paranormal world!”
`Diana the Book Nerd