Brutal Curse by Casey L. Bond

Prince Carden of Tierney lost his home, family, and claim to the throne in one fell swoop when he rebelled against his father for a cause he knew was right. Instead of wallowing in despair, he embarks on a new journey, starting a new life on the Southern Isle. When he finds himself caught in a web woven by the famously ruthless fae queen, Coeur, he insults her and she vows to teach him the most difficult and heart-breaking lesson he will ever learn: that humans are incapable of love, and that hearts are beastly things.
Arabella wasn’t really living, she was existing and surviving as best she could. A chance encounter with Carden changes everything for her, but the deadly game he’s dragged her into might cost her life. Still, she agrees to play. The rules the fae queen gives them are vague, and it’s obvious there are things Queen Coeur isn’t telling them. She’s sure of it. But what she does know is that together, she and Carden must pass a series of tests and trials. If they fail, game over. But if they succeed, she just might be able to restore her family and carve out the life she’s always envisioned.