Lord Rivington's Lady - Eileen Jackson

I couldn't finish this one because of the one-dimensional characterization of everyone in the story besides the heroine and the hero. Why do the mother and sister of the heroine, not to mention other characters that have a role in the story, have to be portrayed so unrelentingly negatively?  

 

However, this writer has a good understanding of Regency society and early 19th century mores, certainly a lot more than the authors and publishers of the wallpaper novels that are passed off as "historical romances" these days.