Enemy Mate by L.J. Red

Beloved enemy, deadly soulmate.
Talon finds the soulmate he never thought he’d have. There’s only one problem: She’s his sworn enemy.
Talon is ready to die. A savage vampire assassin, he has led a life of violence, raining terror and death on enemies of the Shadow. His heart is encased in ice and he can barely remember any emotion that isn’t brutal rage.
Until he meets Eden—a captivating vampire from the enemy Bloodline terrorizing Chicago, and Talon’s fated soulmate. No matter how hard he fights his desire, the soulmate bond is too strong to break.
Eden hates being a vampire. All she wants to do is keep her sister safe from the mistakes she’s made. But can she trust the wildly attractive warrior to protect her? Talon seems to despise her, yet he defends her with a fierceness that shocks her to the core.
Pulled into the deadly, seductive world of the vampire elite, Eden can’t understand the desire burning between them. As the two fight their feelings, the war between the Bloodlines threatens to swallow the entire city. Can they accept their soulmate bond in time to save each other from the evil around them?