Darker than Love by Anna Zaires

Once upon a cold, dark night, a Russian killer stole me from an alley.
I’m dangerous, but he is lethal.
I escaped once.
He won’t let me do it twice.
The revenge is his.
The betrayal is mine.
But so are the lies to protect the ones I love.
We’re cut from the same twisted cloth. Both merciless. Both damaged.
In his embrace, I find hell and heaven, his cruelly tender touch destroying and uplifting me at once.
They say a cat has nine lives, but an assassin has just one.
And Yan Ivanov now owns mine.