Sweet Nightmares 4: The Vampire King - Sweet Nightmares, #4

Every vampire must sing its song. The vampire king has lived a life of lonely solitude. The woman he loved once upon a time never loved him back. Despite their passionate relationship, she walked away from a life with him and instead forged her own path. Now fate has brought them back together again. And this time, he won't be so quick to let her go.