For a year our dog loved him like family. Then one afternoon he sank low and growled at the one man he'd never feared. I should have listened sooner.

I went out for fresh air after a bad day. Two blocks from home, parked in a driveway I knew too well, was a car I'd recognize anywhere.

I surfaced from sleep to a rhythm I didn't recognize in my own bedroom. When I opened my eyes, the woman I loved was already mid-betrayal.

I mailed off a plastic tube for a school science project. Six weeks later the results page held a stranger who shared half my blood and lived ten minutes away.

Grading essays all day taught her to spot a machine pretending to be a person. She never expected to find that same fingerprint on a love letter meant for her husband.

He found out about her affair on a Tuesday. By Thursday, her entire professional network would know it too, in exactly fourteen words.