Cityfile: New York's Most Notable and Influential

• Lindsay Lohan certainly had an eventful weekend. After a judge issued a warrant for her arrest on Friday, Lindsay had a meltdown on Twitter and ended up in a fight with Sam Ronson that was so intense, the cops had to be called. It's not over yet: She's scheduled to appear in court today, although she may not show. [People, Gawker, TMZ, NYP]
• Olivia Palermo isn't making friends in her Tribeca apartment building. She strutted past the people gathered in the lobby last Thursday "completely oblivious" to the fact that one of the building's apartments was on fire. [P6]
• Gwyneth Paltrow and her trainer Tracy Anderson are having trouble finding people to pay $4,500 to join their new Tribeca gym. What a surprise. [P6]More

• Guess John Mayer didn't buy Jennifer Aniston an engagement ring after all. It's now rumored Mayer ended the relationship right around the time Aniston got back from her world promotional tour for Marley & Me. [E!, Us]
• Tim Gunn supposedly has a "secret crush" on Anderson Cooper. He says he's been trying to set up a lunch date with the CNN anchor for more than a year now, but it hasn't happened. Yet! [OK!]
• Mandy Moore and Ryan Adams got married on Tuesday in Savannah. [Us]
• Breaking! Katie Holmes has long hair again! [DM]More

♦  Madonna and A-Rod are reportedly shopping for "love nests" on the Upper East Side. They're looking for something between Fifth and Park, from 60th Street through the 80s, in case you have any suggestions. Oh, and they're looking for retreats in Hamptons, too. [P6]
♦  The blame game begins: Ivana's friends say her split with Rossano Rubicondi was his fault because he's been dating a model. Rossano, meanwhile, says Ivana is to blame because she's been dating a model. [R&M]
♦  Robert and Blaine Trump are scheduled to make their first appearance in Manhattan Supreme Court this morning as the couple looks to end their 25-year marriage. Prepare for things to get "exceptionally ugly." [NYP]
♦  Uma Thurman's parents unknowingly hired one of the bookers from Ashley Dupre's escort agency to run their upstate yoga center. [NYP]More

♦  The Ashley Dupre press bonanza begins: In her first print interview with People, which hits newsstands on Friday (the same day she'll appear on 20/20), Dupre says she's just a "normal girl" who has "a lot of depth," and that she feels sorry for Silda Spitzer, but doesn't blame herself for Eliot's downfall. [People, NYP]
♦  Are Gwyneth Paltrow and Chris Martin splitting up? The two have spent very little time together since this summer, and now she's become "very good friends" with Fontainebleau hotel owner Jeff Soffer. Gwynnie reportedly spent time with Soffer (and his Bentley and yacht) this past weekend in Miami. [P6]
♦  Britney Spears is supposedly dating a 27-year-old model named Marco D'Angelo who she met through friends in Las Vegas. [Star]
♦  It looks like Anne Hathaway is attracted to lovable losers, since people who know her new boyfriend, actor Adam Shulman, say he's an "opportunist" who "went after all the heiresses" when he was a student at Brown. [P6]More