Every time I returned from work trips, I noticed subtle changes in my dog, Bella. She’d come back freshly groomed, wearing new bows, and smelling faintly of perfume. My husband, Jason, claimed he was bonding with her, though he’d never shown much interest in Bella before. One day, a new collar with a heart-shaped charm caught my eye. Inside, a note read: “YOUR HUSBAND IS A CHEATER.”

Determined to uncover the truth, I placed a hidden camera in Bella’s collar and pretended to leave on another trip. From my parked car, I watched Jason take Bella to a home I didn’t recognize. A woman greeted them warmly, but when I went to confront them, it was a young girl—about ten—who opened the door, excitedly calling me “Bella’s mom.”

Jason then explained everything. The girl, Ellie, was his daughter from a one-night stand years ago—something he had only recently confirmed through a DNA test. The woman at the door was just Ellie’s nanny. Ellie had been the one caring for Bella, adding the bows and perfume, and writing the note out of fear that I’d take her dad away