I bought the DNA kit to trace my grandfather's village. Two matches came back. One of them carried a surname I had only ever heard in my own jealous nightmares.

She held up the test like a winning lottery ticket. I should have been thrilled. Instead I sat very still, counting backward through a calendar that didn't add up.

I knew one strange fact about the man I suspected. So I sent my spit to a lab and let the math decide whether I was paranoid or right.

She met me at the door with happy tears and a secret she thought would save us. She didn't know the one fact that made her whole story impossible.

He started tracking his sleep to fix his snoring. One quiet Tuesday morning, I pressed play on the night's recording out of plain curiosity.

My phone buzzed during dinner with a payment request from a number I didn't know. The note attached to it ended my marriage in eleven words.