Us by David Nicholls.
David Nicholls paints a portrait of a modern English family with brushstrokes that hit the heart without being maudlin or sappy. A couple gets together for all the wrong yet right reasons at the time. They endure so much and find a kind of love over 20 years. Their son is the cistern that collects all of the pastel runoff and deals with it the best he can.
A spare style brilliantly intertwines stories that culminate in the summer of very questionable choices, which make sense in the end. It is laugh out loud funny. Poignant though never cry out loud sad. Best read of the year.