When my mother-in-law insisted on babysitting my four-year-old daughter every Wednesday, I thought it was a harmless favor. Until my daughter started acting strange.

She talked about a “friend” I wasn’t allowed to know. She said things no child should ever be coached to say. My instincts told me something was wrong.

So I installed a hidden camera.

What I saw shattered me.

On the footage, my daughter waited excitedly for this mysterious “friend.” My mother-in-law reminded her not to tell me anything. Then the door opened.

And in walked my husband’s ex-wife.

The woman I was told had moved away years ago.

My daughter ran straight into her arms.

I rushed home and found them sitting together like a fake little family. That’s when my mother-in-law admitted the truth: she never wanted me. She believed my husband belonged with his ex and had been secretly reintroducing her into my daughter’s life, preparing for a future where I would be replaced.

She had been manipulating my child.

I grabbed my daughter and walked out.

When I showed my husband the footage, he was horrified. He cut his mother off completely and banned his ex from ever seeing our child again.

Some betrayals can’t be forgiven.

And some people don’t deserve to be called family.