For ten years, Mark has left our house at seven-fifteen every Sunday morning. He always said he wanted to get the early bird rate at the golf course before the crowds showed up.

He had his clubs in the trunk. He wore his golf shirts. He even came home with grass on his white sneakers.

I realize now he must have kept a spare pair of shoes in his locker or his trunk. He must have bought a bag of grass clippings from the garden center just to scatter them on the floor mat of his car. He left empty boxes of Titleist golf balls on his workbench in the garage for years. They were covered in dust because he never actually opened them. It was all a prop.

The level of planning is what makes my stomach turn over. It wasn’t a sudden mistake. It was a weekly calendar event.

I checked our joint savings account online. The numbers looked normal. But then I went deep into our tax returns from three years ago.

I found a separate tax document. An old charitable tithing form that had been misfiled under our old home insurance paperwork in the filing cabinet.

He was tithing fifteen thousand dollars a year to St. Luke’s. Under his name and Diane’s.

They were registered at the church as a married couple. They had their own joint donor number.

I stood in the kitchen and looked at the green kettle on the stove. I looked at the magnets on the fridge. My whole life felt like a stage set. Like if I pushed on the wall, the drywall would just fall over and show an empty parking lot.

I didn’t cry. I think I was too tired to cry. When you spend thirty years trying to be good, trying to save every penny, you don’t have the energy for a big dramatic scene.

I just went to our closet and pulled out my good blue dress. It is the one I wore to my niece’s graduation three years ago. I set up the ironing board. I ironed every single pleat. I spent forty minutes on the collar alone.

Which brings us back to Sunday morning.

Mark left the house at seven-twenty. He kissed my cheek like he always does. He smelled of soap and cedarwood.

“See you around noon,” he said.

“Have a good game,” I told him. My voice didn’t shake. I was surprised by how easy the lie was. I had been learning from a master for ten years, after all.

I waited five minutes. Then I got into my old Buick. The engine made that loud, wet clicking sound it always makes when it is cold. I drove across town, past the strip malls, past the car dealerships, into the older, wealthier neighborhood where St. Luke’s sat.

The church was beautiful. It was made of dark gray stone with massive stained-glass windows that showed scenes of blue and gold water.