The Sense of an Ending - Julian Barnes
This is a meditation on how the "truth" of the events of personal history are distorted by time and the mindset of the observer. We asign reasons and motives that come from our own way of looking at people and our assessment of them. This is a clouded and even distorting lens that may lead us to believe things that are far from the truth.

It is a cleverly written book but inevitable involves a lot of navel-gazing that becomes tedious.