The Dreams of Broken Kings by Lana Pecherczyk

After being abandoned as a child, Ada has learned to choose her friends and lovers wisely. And then a nuclear winter froze the world, taking everything she fought so hard to keep. When she inexplicably wakes years later in a new world full of magic, and where humans are the enemy, all she wants is to find her two best friends… if they’re even alive.
Jasper knows he is someone damaged and dangerous, the scars on his body prove it. But his memories have been taken from him. He knows not why, or how, he came to be in the locked room with the pretty, vulnerable human, but he knows three things: the King wants him dead, Ada is his mate, and he’ll do anything to claim her.
Trusting each other is their first step to uncovering the truth and avoiding certain death. But how can Ada feel safe with a strange fae who keeps dark secrets one minute, and then stokes the flames of her desire the next? How can she forgive the broken fae for hiding the most precious secret of all – his heart.