Married to the Earl by Samantha Holt

Going from vivacious society belle to widow wallflower can leave a lady wanting…
Joanna Lockhart is trapped in a mire of grief and boredom. Still recovering from the sudden death of her husband, the beautiful widow is tired of being treated like a fragile porcelain doll. But when a severe illness nearly claims her life, Joanna finds the perfect outlet for her natural vitality—a charity.
Unfortunately, her sudden interest in all things philanthropic is marred by the presence of one Ambrose Creasey. For some unknown reason, this handsome cad has decided to cast aside his reputation as a rake, and take up the mantel of charitable patron.
As the Earl of Newhaven, Ambrose has enjoyed his life of delicious debauchery. But recently the earl has hungered for more noble pursuits. A charity seems to be the perfect outlet for his newfound desire to be more than just a rake. And of course, he doesn’t mind the aid of a beautiful, well-connected woman like Joanna… Especially when he cannot resist riling her a time or two.
After all, she does rise so beautifully to the challenge.
Focusing on their work is harder than either of them thought. There’s no denying the attraction between them, but is Ambrose truly prepared to cast aside his hedonistic history? And even if he does, is Joanna ready for a new love?