The White Hart of Penlinton — Mair Unsworth

a compelling romance of a young woman desperately torn between the man she has married and the man she loves...

Exceptionally handsome, boyishly charming, and wealthy, Dudley Rawson has always gotten his own way…especially with women. Branwen Vaughan prefers to ignore the snide insinuations leveled at his character, and marry him anyway. She believes that as the squire of Penlinton Hall, with a wife by his side, he will give up his philandering and settle down.

But Branwen is investing too much faith in her immature and wayward husband, so when Simon Lambert enters her life, she is vulnerable to his affections. Strong, dependable, possessing alt that Dudley lacks, Simon brings the beautiful Branwen to the sad realization that the man who is her husband is not the man she wants -- and she is a helpless prisoner of her own making…