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Flavor Flav's fiancee -- who is starring with the rapper on this season's "Couples Therapy" -- was hospitalized today after ODing on painkillers ... TMZ has learned.
Sources connected with the show tell TMZ ... the fiancee, Liz Trujillo, is the mother of one of Flav's children. The two agreed to appear on the show together to work on their relationship.
A honcho on the show tells us ... the OD was accidental and not a suicide attempt. We're told she was "acting strange" and it became apparent "she took too many pills."
The 39-year-old woman was taken by ambulance to the hospital, where she remains although we're told she'll be released soon.