I booked a $150,000 private island vacation for our anniversary. My husband invited his parents and his ex-girlfriend. “You can handle the cooking and cleaning while we enjoy the beach,” he commanded. His mother sneered, “It’s the least you can do for my son’s money.” I smiled, cancelled the entire booking on my phone, and left them standing at the empty pier.

Then I opened the smart-home control system for our ten-million-dollar Beverly Hills estate, all of it running on Sentinel software. I removed Ryan’s thumbprint from the gate registry, deleted his retinal access from the front door, changed every override code, locked the garage that housed his leased Ferrari, and activated a perimeter lockdown.

Four minutes. That was all it took.

In two hundred and forty seconds, Ryan was erased from my financial system, my property, and my future.

I closed the laptop, got back into the SUV, and told my driver, “We’re not flying today, David. Take me to the Ritz downtown. I want a suite for the week.”

As we pulled away, I watched through the tinted glass while Ryan handed one of his cards to the seaplane captain for dock fees.

A moment later, the captain frowned and handed it back.

I leaned into the leather seat and took a long sip of sparkling water.

On the dock, the unraveling began fast.

“What do you mean it’s declined? Run it again!”

His voice, usually so measured, cracked with panic. The captain remained calm.