The Demonslayer by Jessica Gadziala

He knew he could never have her.
But he had no control over his reaction to her, the Claiming of her that was out of his hands.
He couldn’t seem to stop coming when she called, even though he knew she was only going to use him then reject him again, leaving him heartbroken all over again.
That is, of course, until she needs his help…

She wasn’t supposed to want him.
He was everything she existed to loathe—the evil she was meant to eradicate from the world.
But there was no denying her need for him.
The problem was, he always wanted more.
And she couldn’t give it to him.
But when there was a case she needed help with, there was only one place she could turn.
To him.
The closer they got, though, the more she saw that maybe it wasn’t just him who had feelings after all…