The Estranged Earl by Lisa Torquay

Two strangers married for eight years!

Lady Ophelia Ashcombe was little more than a debutante when she married the Earl of Ramsgate with dreams of love and domestic bliss. After their wedding night, though, her new husband vanished in thin air. For eight years. Ophelia endured the ton’s gossip and unwanted attention until she decided to take matters into her own hands and get on with her life—by marrying someone else.
Leonard, the Earl of Ramsgate, returned to England to find the wife he’d left behind a full-grown woman with full-grown plans. And her plans did not include him. Worse, they spelled disaster! Faced with a wife who prefers to see the devil rather than stay with him, he will have to employ every drop of his wits to make her turn around to his way of thinking. It is that or ditch the heir he needs to carry on with his lineage.

The field is set for a duel of wills and wits where true love will struggle to win.