The Guardian Michael (Brotherhood of the Guardians #2‪)‬

Two centuries as a vampire has left Michael Hastings wondering if a long, lonely existence is as good as it gets. But when love finds him, it will force him to choose between what he wants and what he knows is right.
Molly Little’s life changes from a horror story to a fairy tale thanks to men she’s sure must be guardian angels. Nearly blind from birth,she can't see her heroes have fangs.