This book had a wonderful build up and great twist and turns weaved throughout the story. The reader is drawn in to the story as one of the main characters shares present day events during her daily life with the past events that have led her to "obsess' with her ex's current fiance. The writing and use of language was good. I loved how well the authors layered the events at a great pace. The authors also did a great job invoking different feelings during some of the more difficult situations that the characters shared. The ending was overall very good and tied up everything well, but I did not think one of the last twists of the characters' motives was needed and could have been written out and still made for a great ending. I would recommend this book to those who love a great layered mystery. I am looking forward to reading more books by these authors.