Doronin spent Christmas with his wife Ekaterina, his daughter Katia, and his mother-in-law before he jetted off for New Year''s with the supermodel, reports the New York Post.
The Russian billionaire, who is not divorced from his wife despite his public relationship with Campbell, spent the week leading up to Christmas at the Beverly Hills Hotel with his family.
Campbell then flew to Los Angeles, and the couple then headed off to Cabo, Mexico.
Meanwhile a source said that Doronin and his wife still have not reached a divorce settlement
"Despite rumors of a wedding in 2011, he and his wife are nowhere near a divorce settlement," said the source.
