Then I remembered something more useful.

Mateo forgot who he had been married to.

I kept receipts.

I called my cousin Andrés.

He worked in systems security, wore black T-shirts to weddings, and considered passwords a moral test. He arrived forty minutes later with coffee, two pastries, and his laptop under one arm.

“I’m not hacking anything,” he said before I could speak. “I’m only checking what he left open on the home computer.”

“Good.”

“And if he left things open because he’s an idiot, that is between him and God.”

Mateo had left WhatsApp Web synced on the desktop in the study. His personal email was open too. His notes app sat there like a diary written by a man too arrogant to fear being read.

Ego had made him sloppy.

Andrés found the first conversation with Camila in less than ten minutes.

Camila: Did you get the money for the trip?

Mateo: Yes. I told her it was for property tax. She never checks.

Camila: I love that your wife is paying for our wedding.

Mateo: She’s so boring she doesn’t even notice.

My stomach dropped.

Not because of the insult.

Because of the amount.

The transfers I had made for taxes, roof repairs, insurance premiums, work travel, family emergencies — all the tidy little expenses that sounded too ordinary to question — began rearranging themselves into a second life.

It was not just an affair.

They had used my money to celebrate it.

I kept scrolling.

Hotel bills.

Transfers hidden as grocery expenses.

Airline charges labeled as vendor meetings.

Messages laughing about my routines, my responsible habits, my refusal to spend money carelessly.

Then the messages got uglier.

Camila: What if she catches you before Vegas?

Mateo: I’ll say she controlled me. My mom will back me up.

Camila: She seems cold enough for people to believe it.

Mateo: Exactly.

The room tilted.

There are moments when betrayal stops being personal and becomes architectural. You realize the cruelty was not a storm. It was a building. Walls, wiring, exits, rehearsed lines. They had not simply lied. They had built a version of me ugly enough for the world to reject before I could speak.

Andrés looked at me carefully.

“Lucía.”

“I’m fine.”

“No, you’re not.”

I stared at the screen.

“You’re right,” I said. “I’m not. But I am very organized.”

At 3:00 p.m., I posted fifteen screenshots.

No speech.

No insults.

No dramatic explanation.

Just proof.

I tagged Mateo, Camila, Doña Elvira, and Pilar.

Then I placed my phone facedown on the table and waited.

Chapter Three: The Internet Changes Sides

The internet flipped so fast it almost made me dizzy.

People who had called Mateo brave at noon were calling him a thief by four. Camila started deleting photos. Pilar shut down her profile. Doña Elvira suddenly discovered the spiritual value of silence.

My phone lit up like a warning system.

Lucía, I had no idea.

I’m so sorry. We believed him.

He used your money for the wedding?

That message about the property tax is disgusting.

I saw your post. Do you need anything?

The apologies came in the same place the insults had arrived: small glowing boxes, too late to undo what they had already done. I did not answer most of them. A woman learns something about people when they require screenshots to believe her.

By evening, Mateo had called twenty-three times.

Then he started texting.

You’re making this worse.

Take it down.

You’re embarrassing yourself.

My lawyer says this is defamation.

Then, finally:

Lucía, please. We need to talk.

The order was almost poetic.

Threat.

Threat.

Threat.

Plea.

I did not respond.

At 11:36 that night, the patio alarm went off.

For one strange second, I thought it was the bougainvillea scraping against the sensor again. Then the camera notification appeared.

Back garden motion detected.

I opened the app.

Mateo was in my garden.

Sweating.

Wild-eyed.

Still wearing the white linen shirt from his wedding photos, now wrinkled and half untucked. In one hand, he held a lug wrench. With the other, he gripped the iron handle of my back door as if anger could change ownership.

Then he slammed the wrench against the glass.

My body went cold.

He struck again.