Viciously Yours (Fae Kings of Eden #1)

A fae prince becomes obsessed with his fated mate, a human woman who has no concept of his world, until he crosses over into hers, determined to claim her for himself.

“I don’t need a line to know what is considered good or bad, but if I did, there isn’t a line I wouldn’t cross for you.”

Rennick:

When Rennick was thirteen, the gods bestowed upon him the name of his fated mate–a human (italics) girl. As the sole heir to the Mountain Kingdom, magic bound him to his kingdom until he ascended the throne on his twenty-fifth birthday, and as a human, she couldn’t cross the magical barrier separating the humans from the fae. Heartsore and consumed with thoughts of her, he did the only thing he could and sent her anonymous letters and gifts…

Until he crossed the barrier into her kingdom to claim her as his own.