Embrace the Twilight. Wings In the Night, #6

Gutted by betrayal, the vampire Sarafina interacts only with humans she can control. Wounded war hero Willem Stone is a man who cannot be broken. During his captivity and torture by the enemy, Willem's tormented mind created a haven for him. Pain triggers visions of a mesmerizing and beautiful woman who seems aware of his presence and calls him her ghost. Sarafina's phantom has shown up a handful of times over her centuries-long life.
She has no idea what he is or how he infiltrates her mind, but he touches long dormant parts of her soul and ignites her passions in a way no mindless, enthralled servant ever has. When teenage Amber Lily Bryant, the only half-mortal, half-vampire in existence, is taken by the evil Frank Stiles, torturer and murderer of countless undead, Willem is hired to rescue her, and Sarafina is sworn to protect her. Willem must put aside his disbelief to save an innocent girl's life. And he must thaw Sarafina's frozen heart to save his own soul. Includes Wings in the Night 9, Run from Twilight, a novella Strong Sexual Content