You might enjoy Anne Enright's "The Forgotten Waltz" if you like complicated issues with no easy answers. She has written a tale of emotional turbulence recounting an extra marital affair between a younger woman and a middle aged family man.
The book is written in the first person narrative of Gina the younger married woman. The book is written in a non-linear fashion which unsettles the reader not knowing what to expect next. The story's backdrop is Ireland during the economic downturn of 2008 affecting real estate and the notion of entitlement. Enright has crafted a tale of splintered lives produced in the aftermath of an affair that doesn't lead to a "happily ever after" ending, but one of real life consequences.
Similar titles that are stylistically complex, character driven, and delves into memories, extramarital relations, and Irish angst.
The marriage plot by Eugenides, Jeffrey; The Infinities by Banville, John ; and Slow Man by Coetzee, J.M.