After my divorce, I bought a house and told no one. While I was out of state, my cameras showed a moving truck in my driveway. Then I saw my ex-husband and his new wife carrying their furniture inside. I didn’t call him. I called the police.

Then I paid to replace every lock and erase every code from the smart system.

That evening, sitting alone on the floor of my empty living room, I started doing something I had done throughout my marriage.

I searched for ways this could somehow be my fault.

Had I accidentally told Emily?

Had Mark misunderstood some passing conversation?

Had I reused an old code?

Living with him for twenty-seven years had trained me to examine my own behavior before questioning his intentions.

The next morning, I started tracing exactly how he had found the house.

The flooring contractor gave me the first answer.

He mentioned the code was posted on the shared Google calendar.

I froze.

For years, Mark, Emily, and I had shared a family calendar.

After the divorce, I thought I had removed Mark.

I checked.

He couldn’t edit anything.

But his old Gmail account still had permission to view events.