I went to the airport to see my best friend. Instead, I saw my husband embracing Pamela—the woman I trusted and introduced to him. “Everything is ready. That idiot is about to lose everything,” he whispered. Pamela laughed, “And she won’t even know it’s coming.” I didn’t cry or confront them. I froze in terror. Because my phone was about to ring.

The scent of stale espresso and floor wax at Denver International Airport usually faded into the background of my travel routines. I was standing near Gate B12, gripping a cardboard cup of coffee in one hand and my phone in the other, mentally drafting the grocery list for dinner. I had just hugged my best friend goodbye, sending her off to a surgical conference I had opted out of.