EXCLUSIVE: Real Reason Kate Called Cops On Jon - What She’s Not Telling

Kate Gosselin has been candid in her many recent national TV interviews – but she has held back from revealing all of the details about some of her family’s recent headline-making moments.

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One of Jon and Kate’s more infamous moments came recently when she showed up at their Wernersville, PA home and Jon refused to let her in, saying it wasn’t her turn with the kids. Kate called the police and ultimately had to leave the property and stayed in a local hotel.

Kate briefly touched on the subject during her Larry King Live interview Tuesday night, but she didn’t divulge the key details, RadarOnline.com has learned.

The real reason Kate showed up at the house that night – knowing it wasn’t her turn to be with the kids – was because she heard Jon was going out drinking and leaving the kids with babysitter Stephanie Santoro, a source told RadarOnline.com exclusively.

Jon and Santoro spent a previous night together and RadarOnline.com obtained exclusive photos of Stephanie leaving the Gosselin house hours after going home with Jon, who “hired” her as a babysitter after his split with Kate. (And Stephanie did the ”Walk of Shame,” wearing the same clothes as the night before.)

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Kate believed it would be better for the children to spend the night with their mom rather than Stephanie when she heard Jon was going out. That’s why she showed up at the house the night police were called. But, even though she has been questioned heavily about the incident, Kate has refused to divulge why she was at the house that night.