Mary-Kate Olsen may be "head over heels" for Olivier Sarkozy, a moneybags investment banker and the half-brother of former French president Nicolas Sarkozy, but their rumored hookup has left his ex-wife seething.
"That's not right," Charlotte Sarkozy is quoted as fuming to the National Enquirer. "It's grotesque!"
She's not the only one taking issue with the romance between the teeny fashion mogul, 25, and Sarkozy, 43.
"Mary-Kate may think she's in love and being swept off her feet now," an insider cautions to Star, "but before long she'll realize she's just one of many women that he's making pancakes for in the morning."
Olsen reportedly began dating Sarkozy in early April, the same month they were snapped looking lovey-dovey at a New York Knicks game.
He has two children with Charlotte, whom he married in 1997. They recently settled a contentious, two-year legal battle over their prenuptial agreement.
Despite the flapping relationship red flags, "[Mary-Kate] really likes the guy," a source tells Us Weekly. "She's constantly complaining about boys not being mature enough for her."