My husband texted: “Happy anniversary, babe. I’m stuck at work.” I was already there—watching him kiss someone else. Then a stranger whispered: “Stay calm. The real show is about to start.”

My husband texted me at 7:14 p.m. « I’m stuck at work. Happy 2nd anniversary, babe. I’ll make it up to you this weekend. » At 7:15, I was sitting two tables away from him in a crowded Chicago restaurant, watching him kiss another woman like I had never existed.

For a few seconds, I couldn’t move. My hand was still wrapped around …