The Twice-Scorned Lady of Shadow by Annette Marie

I’m learning to embrace who and what I am, but there’s one thing I can’t face: the night Zak betrayed me. But even with the mysteries of our shared past hanging between us, I can’t turn Zak away when he asks for my help.
Powerful fae are going missing, and when he tried to investigate, Lallakai vanished too. Now he wants me to venture with him into the territory of the Shadow Court, but its bloodthirsty courtiers don’t welcome meddling druids.
Danger is gathering around us, seen and unseen. As we uncover incomprehensible clues about the missing fae, we realize this nightmare runs deeper than we imagined, and unveiling it means delving into the past—our past.
If I abandon Zak now, he’ll never make it out alive. But if I stay at his side, if I face the truth of that night, it will destroy us both.