Brave by Jennifer L. Armentrout

Ivy Morgan hasn't been feeling like herself lately. Not like anyone can blame her. After all, being held captive by a psychotic fae prince hell-bent on permanently opening the gates to the Otherworld is bound to leave some mental scars. It’s more than that, though. Something dark and insidious is spreading throughout Ivy, more powerful than she could ever imagine... and it’s coming between her and the man she’s fallen deeply in love with, elite Order member Ren Owens. Ren would do anything to keep Ivy safe. Anything. But when he makes a life altering choice for her, the fallout of his act has far reaching consequences that threaten to tear their lives apart. If Ivy is going to have any hope of surviving this, she must put aside the hurt and betrayal she feels, and work with not only those she loves, but with an enemy she would rather kill than ever trust. War is coming, and it soon becomes clear that what Ivy and Ren thought they knew about the Order, themselves, and even their enemies, has been nothing but a cluster of dangerous, deadly lies. Ivy knows she must be more than just brave to save those she loves--and, ultimately, to save herself. Because behind every evil fae Prince, there’s a Queen….