Heartsease; Or, The Brother's Wife

"Heartsease; Or, The Brother's Wife" by Charlotte M. Yonge is a story set in what seems like the mid-1800s, focusing on Theodora Martindale as she deals with her family changing and love getting hard after her brother, Arthur, gets married quickly, leading to trouble, and investigates family loyalty, what society expects, and how romantic relationships can be messy, when she hears from a curate, Mr. Wingfield, about Arthur possibly getting involved with a family of lower status and being involved with village children but is disrupted by the arrival of a young curate and she works to protect her family's honor and the bonds between them, hinting at the problems and decisions she'll face as she tries to stay true to her family and find love.