Her Villain by Quinn Blackbird

This brutal dark prince has his hooks in me.

Shifting between warrior and lover, his changing moods have me addicted.
To fall for a dark fae is a dangerous thing. Even more dangerous is when they start to fall for you–a sickly human.
Prince Daein has kept me captive for two months.
Two months of harsh moments in the shadows, pinning me to his bed, muttering strange words against my mouth as though they hold all the secrets I need for answers.
I should be a mere house slave. Now, he’s made me his lover.

I have one final month of slavery in his castle, but I’m beginning to worry that he might never let me go.
If he doesn’t, he puts my life at risk.
His brother’s growing attention is casting new dangers over me. The illra – a political sisterhood born to protect the purity of the royal bloodline – are watching me too closely. And each day that passes brings a fresher fear that my existence will be cut short before I can make it home.
But the longer I stay in Daein’s arms, feel his mouth on mine, the caress of his fingers over my human body, the more I worry … a growing part of me might not want to go home in the end.

The prince might break me or break my heart and soul. In truth, I don’t know which one is the worst of fates anymore.