A memoir about the collapse of a twenty-year marriage and the slower, stranger work of reinterpreting everything that came before it. In March 2020, with no warning she recognized as one, Belle Burden's husband told her he was leaving. The book that follows is not primarily an account of the aftermath but an investigation into the marriage itself, conducted with the discipline of the lawyer Burden trained to be. She goes back through two decades of shared life looking for the evidence she failed to read at the time, and the results are unsettling in a specific way: not a hidden double life so much as an accumulation of small evasions and unexamined asymmetries that were visible all along to anyone willing to look. Burden is unsparing about her own role, particularly about the ways she managed and explained away her husband's behavior in order to preserve a story she wanted to keep telling. The book is sharp on the sociology of a certain kind of educated, comfortable New York marriage, where the assumption of partnership can obscure how much of the maintenance one person is quietly doing. It is also honest about the loneliness of the year the separation happened, when the pandemic removed every ordinary distraction. What lifts it above the genre is Burden's refusal to resolve into either wronged party or wiser survivor.