The Fallen Viscount by Wendy Vella

Ruined in the eyes of society, and removed from the only world they’d ever known, the Nightingale siblings vow never to be victims again. They will build their new life on what they’d once ignored. Being a clairvoyant is an excellent survival skill.
Could she be the one to save him?
Leopold Nightingale was a man who could find things no one else could. He’d denied this gift until the night a cuff link slid into his head, especially as it was in the hand of the woman he’d once loved.
Lady Hyacinth Armstrong was destined to be his wife, but when society turned on his family, he did the only thing he could. Leo walked away from her. When years later he finds her in dire need of his help, he’s shocked to find her a widow. His second surprise comes when he realizes she’s no longer the sweet natured lady he once knew. But one thing was soon startlingly clear to him. The woman intrigued him far more now than she used to.