This Haunted Heart by S. L. Prater

Her heart will never belong to anyone else.

Finley
Twenty years ago, Rynn abandoned me to an abyss without her. Her betrayal haunts me more than any ghost at my manor ever could. Years of grief and suffering have even changed my face.
But now I’ve found her.
She’s hiding in a den of iniquity, working as a courtesan under a false name. She won’t recognize me or the scars that her actions caused—not until it’s too late. My cage is ready for her inside my haunted estate. Rynn’s heart is mine, and I intend to break it.

Rynn
I found a man hiding out in my room. I should have known better than to trust him, but there was a beautiful darkness to him that captivated me. He had the saddest eyes I’d ever seen.

He was just a pretty devil in disguise.
If Finley thinks he can trap me for long inside a cage, even a gilded one, he will rue the day. I always give as good as I get. He can have my heart if he wants it so badly. The organ is nothing but a nuisance.