I knew my marriage was over the moment my daughter handed me that envelope. But I never expected the end would feel like a knife twisting in my chest, delivered by the man I’d spent twenty-three years loving.

It was a crisp Tuesday morning when I dropped Robert off at JFK International Airport. He was flying to Denver for a routine audit—or so he claimed. As the CFO of Pinnacle Financial Group, trips like this were normal. He’d kissed me goodbye at the curb, his lips dry and quick, and then he turned to our daughter Susan. She had insisted on coming to see him off. At the time, I thought it was sweet.