That Big Party You Kept Reading Stephen Schwarzman Was Planning? He Had ItWall Street buyout king Stephen Schwarzman threw a party at the Park Avenue Armory. It cost $3 million. Lydia Hearst is only giving away her limited-edition purses to “role models”; Britney Spears asked for one at last week’s Heatherette show but was turned down. An executive assistant at Jive Records was fired for using interns to sell pre-release Justin Timberlake albums at $50 a pop. Registered nurse Judi Giuliani helped out a sick passenger on an airplane. Bill and Hillary are having Valentine’s Day dinner at a secret location tonight. Mario Batali won a lawsuit against his landlord at Del Posto. Paris Hilton will celebrate her birthday this Saturday with Nicole Richie and Snoop Dogg.