The Pocket Wife by Susan Crawford

Dana Catrell is a woman with a bipolar disorder who was called in by her neighbor, intent on sharing a photo of an apparent adulterous liaison she caught in her phone's camera. After a few drinks with the distressed neighbor, Dana has a heated argument with her because she suspected the woman is unusually distressed by the photo. Unfortunately, after she wakes up from her drunken stupor, she finds her neighbor murdered. Not being able to recall what has happened, she can only remember a few snippets of their conversation that went sour before she blacked out. Hence, she's not even sure if she murdered her neighbor.

It was a good thriller reminiscent of "Under My Skin" but with a different outcome. I was uncomfortable with the adulterous strain of the novel but I was interested to know if Dana would be vindicated after the disastrous events following the murder. I know millions of murder books involve adultery but I developed a strong compassion for the main character and how she was treated by her spouse.

Thankfully a total of 2 adulterers get punished physically and legally  for their sins except for one, who was relieved from the punitive measures he deserves. I am not a fan of unfaithfulness and believe all adulterers should be severely chastened.
The result of the murder investigation was satisfactory with a note at the end hinting that the living "victim" has a second chance involving her  future and love life.