Blood Bond: Cora’s Choice 5 by V. M. Black

The bite of a vampire saved Cora Shaw’s life - but at the price of an eternal bond that gives him complete power over her mind and body. Dorian Thorne offers worldly riches, eternal youth, physical pleasure, and even a kind of happiness. But the vampire has already shown that he will change even Cora’s innermost thoughts when it suits him, so Cora knows she has everything to lose.
Cora discovers that the bond may not be eternal, and she finds herself facing a choice: to break the bond and resume her old life - or to keep it and choose Dorian at the risk of losing herself.

The bond, once broken, can never be repaired, so Cora is playing for keeps with the most important decision of her life. But each choice comes with its own terrible price.