Wicked by Elisabeth Naughton

ZAGREUS—Dark, depraved, cursed. In every way the Prince of Darkness.
Then he found her.
She was his salvation. His sanity. His strength. The only constant in his immortal life. Even when fate ripped her from his arms, he always found her again. But five hundred years has passed since her last death, and with no sign and no guarantee she’ll be sent back, the darkness inside him is swirling out of control.
Then fate drops a female in his path. One with violet eyes he’s sure he’s looked into millions of times across multiple lives. Talisa may be the daughter of the Eternal Guardians’ leader, but Zagreus is convinced she’s the missing half of his tattered soul. He doesn’t care that she doesn’t remember him. He’ll never let her deny that wicked-hot connection still sizzling between them.
This time, Zagreus is willing to risk everything—his present, his future, his destiny…even war—to keep her.
Because this time, even if he has to hold her as his prisoner for all eternity, he won’t lose her again.