Lisa Vanderpump’s LA hot spot Sur is no stranger to drama, but the restaurant may have just cooled down a bit. In Touch has learned the restaurant owner and Bravo star of Vanderpump Rules decided she’s had enough with longtime employee Kristen Doute.

Not only did Lisa kick Kristen to the curb, but co-star Stassi Schroeder — who never forgave Kristen for sleeping with Stassi’s ex-boyfriend — may be to blame!

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“Lisa and Kristen have always butted heads, but recently Lisa confided in Stassi about their problems,” an insider exclusively reveals to In Touch.

Upon hearing her complaints, Stassi suggested Lisa let Kristen go. “Stassi finally got revenge,” adds the source, “because Lisa listened! She sealed Kristen’s fate.”

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