"Real Housewives of Beverly Hills" stars Dr. Paul Nassif and Adrienne Maloof are on the outs -- Paul plans to file for legal separation early this week ... TMZ has learned.
Sources tell us Adrienne and Paul have discussed the situation, and she is well aware of his intentions to file the paperwork.
We're told the couple -- married since 2002 -- has made multiple attempts to work out their issues, but ... no dice.
Paul and Adrienne have 3 sons together.
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