A single father was having tea alone when an old woman whispered to him, “Pretend you’re my daughter’s fiancé.”

There is something quietly devastating about feeling alone in a room full of people celebrating love.

Marco Salazar had learned to carry that feeling like one carries an old scar: no longer with the raw pain of the first few days, but with a dull weariness that appeared when he least expected it. Like that afternoon, sitting at a round table near the tall windows of the Imperial Room, in an elegant hotel in downtown Mexico City, watching the arrangements of white flowers catch the golden light of the afternoon.

He held a teacup with both hands, just as his mother had taught him when he was seven. He was forty-one, though many guessed he was younger. He wore a navy suit with the same care a man gives to donning armor: carefully, intentionally, hoping it would say something about who he wanted to be, and not just about who he was at that moment.

A single father.

A man whose wife had left three years earlier, on an ordinary Tuesday, leaving a handwritten note on the kitchen counter, and his six-year-old daughter, Lucia, sitting at the table drawing butterflies with crayons, unaware that his world had just changed forever.

Marco had been invited to the wedding by Daniel Ortega, an old college friend whose younger sister was getting married that afternoon. He had accepted because Lucía was spending the weekend with her grandmother and because his therapist—a soft-spoken woman who wore glasses dangling from a beaded chain—had gently told him that he needed to practice being in the world again.

So there I was. Practicing.