Phew. Living with the same person, day in and day out, year after year. It's bound to get tough. And when it does, you start to wonder if it's worth it. And you start to consider your options. 
 Realistic, logical, sad, depressing. And oh so terribly human. 
 Ultimately, this is what I fear most about long-term monogamy, and it was hard to face it head on. As I am sure it is for every couple, everywhere. 
 From a writer-ly point of view, the way the author wove together the thoughts and feelings of the two main characters, from one sentence to the next, was seamless and impressive. 
 (view spoiler)[P.S. How are they still thinking about affairs or would-be affairs 20 years later? I just wanted to scream at them to get over it and move on. But then again, I understood how those glimpses of a life not lived would haunt you. Sigh. (hide spoiler)] 
 Favorite Quotes 
 So much of being a parent was protecting one's children from one's own mistakes. 
 The happiest she'd ever been was with him, and the saddest. Was that the true test of love?