Opposing Forces by Kayci Morgan

A Vampire Princess Makes the Ultimate Sacrifice

Death came for Claudia’s kingdom in the form of the Deabru, demonic winged-beasts that tore apart her lands and brought her kind to the brink of extinction. She would do anything to protect what was left of her people, even sacrifice her life.
But Zuriel, king of the Deabru, doesn’t want her to die. He wants her to live, as his wife. A fate Claudia finds a thousand times worse than death. To rule as queen over the same monsters that butchered her family? Intolerable…but necessary.

What she never could have predicted is the way her new dark lord takes her breath and makes her heart race with every glance. Sacrificing herself to protect her people is one thing, being betrayed by her own heart is another.