Bite the Woman That Feeds

Enemies-to-lovers...to unlikely allies...to frenemies with benefits...10/10 spice.
A horrible plague has swept the world.
Millions are sick. More are dying.
Except me. I'm immune.
I'm the only one well enough to defeat this plague and save my people.
Except one problem...
Kingsnake--King of Vampires--is intent on finding me. Without my people to feed on, he'll die. My blood is the only thing that will keep him alive.
He won't stop until he finds me.
Binds me.
And makes me his.