“I keep reading the emails, trying to fit it all together. Hundreds of texts between them in a single day—from seven A.M. till midnight. The affair was present all the time, in the midst of our life. What was I doing when he wrote that? At nine-twelve P.M. on August 5, 2009, we were celebrating my fifty-first birthday. Did he run to the bathroom to text her just before he sang ‘Happy Birthday,’ or was it after?”