The Valley reunion took a wild turn when Andy Cohen exposed Jesse Lally’s girlfriend, Lacy Nicole, for crashing Michelle Saniei’s Zen Party after cameras were down.

Lacy waited for Jesse’s “all clear” before showing up before their pre-planned birthday celebration at Chateau Marmont.

What happened next was pure chaos, and sadly we didn’t get to see any of it!

Sources say she and Michelle got into a major blowup. But because filming had wrapped, the drama never made it to air.

Word is, Lacy even kept Michelle from talking about it on the reunion stage, with Michelle staying silent under her lawyer’s advice.

That didn’t stop Andy.

When Jesse shaded production for trying to film the fight, Andy fired back:

“This is a hot set.”

“This is a show called The Valley. That’s your girlfriend. I want to talk to her — bring her out. Let’s get her on the phone.”

Later on Watch What Happens Live, Andy admitted he was “furious” the altercation wasn’t caught on camera.

Michelle looked thrilled with how it all played out — and honestly, can you blame her?