Then on Valentine’s Day, he went out to buy me flowers and returned three hours later with nothing.

I did not confront him.

I called Grant Miller, a private investigator.

“I want to know who she is,” I told him.

“That’s all.”

Two weeks later, he called me.

He asked if I was sitting down.

I told him I already was.

“Ma’am,” he said, “the woman is in your own family.”

I thought of a cousin.

A sister-in-law.

Someone farther away.

Never, not even for a second, did I imagine my own sister.

Until I opened the first photograph.

Eric and Natalie leaving a hotel in Brooklyn.

She was wearing the blouse I had bought her for her birthday.

That night, I understood that I had spent years sleeping beside one stranger and sharing holiday dinners with another.

For four months, I kept that photograph hidden.

For four months, I smiled through Christmas dinner while Natalie sat beside me carving the turkey.

For four months, every time anyone asked how Eric and I were doing, I answered, “Everything’s fine.”

And now she stood there with a microphone in her hand, telling the whole room something I had already known for four months.

Everyone looked at me.

They expected me to fall apart.

To sob.

To run out of my own anniversary party.

Instead, I stood up slowly.

I smoothed my black dress.

And I walked toward her.

“Put the microphone down, Natalie.”