Mrs. Robinson's Disgrace: The Private Diary of a Victorian Lady - Kate Summerscale
sadly this was one of the few books I failed to finish this year. I think I had not read the reviews of it properly beforehand as I had expected it to be a fictionalised version of events rather than a historical was just too dry for me.
Early divorce cases are interesting though..I very much enjoyed The Sealed Letterwhich deals with the same type of story based on a real case.