By Charlotte Triggs
Updated April 05, 2010 12:00 PM

It would be hard to say that Tinsley Mortimer has it rough. The socialite admits she goes to parties “most nights of the week.” Oscar de la Renta lends her dresses for free. (“You can’t afford them when you only wear them once!” she says, laughing.) Her job? Designing and modeling bags for a Japanese company, Samantha Thavasa.

But for all the fun, Mortimer says, her life is far from simple. Her daily existence is so drama-packed, in fact, it inspired a reality show, High Society, on The CW. “I went through a lot during filming,” says Mortimer, 34, who filed for divorce in July from husband and oil heir Topper Mortimer and let cameras in as she moved out of their Upper East Side home. “I was an emotional wreck! The divorce hit me hard.”

Still, the Virginia-born Mortimer never dreamed of holding back. She was even seen rebounding with a German prince, Casimir Wittgenstein-Sayn. (That romance ran its course; Mortimer is now with American Idol alum Constantine Maroulis, though she says, “We don’t label our relationship.”) If some among the Park Avenue set-including her old in-laws-are raising their eyebrows, Mortimer doesn’t much care. “I already get negative press,” she says. “This is my chance to set the record straight.”