Lindsay Lohan: She's a 'homebody' 'Today,' but she was back on the club scene that night Did her late-evening escapades affect her hosting on 'Saturday Night Live'?

Lindsay Lohan may have turned in a less-than-stellar performance on “Saturday Night Live,” but her straitlaced appearance on the “Today” show Thursday morning was Oscar-caliber. Not even 24 hours after “Today” aired a pre-recorded interview in which Lohan told Matt Lauer that nightclubbing was “not my thing anymore,” an eyewitness says the trouble doll partied past 4 a.m. at Chinatown hotspot Le Baron Friday morning. The source says Lohan — who also told Lauer that she liked being “a homebody” — held court at the nightclub with an entourage that grew as the night progressed. LOHAN GIVES HERSELF THUMBS UP FOR SNL PERFORMANCE She left with a bang, too. Our source says that two men who were sitting with Lohan got into a jealous spat over the “Herbie Fully Loaded” star, which prompted her to leave. The clubgoer adds that one of the men — a dark-haired, muscular stud who stood about 5-feet-9 — declared that Lindsay was “his girl” to his rival. That’s when, the source says, Lohan grew upset and headed for the exit. THE MANY FACES OF LINDSAY LOHAN Judging from the trouble that Lohan had with her lines during the “SNL” broadcast, we wonder if her late-night escapade affected her attention levels during her rehearsal with the show’s cast on Friday afternoon and evening. Weirdly enough, another source says that, while Lohan was making her “SNL” comeback on live television, an even bigger drama was taking place backstage. While LiLo’s mom, Dina Lohan , and her friend Jill Zarin watched a portion of the show from “SNL” executive producer Lorne Michaels ’ office, a source says Zarin noticed that the massive main gemstone from her $19K Zohrab Istanboulian -designed ring was missing. Zarin’s husband, Bobby, bought her the bauble from the Elizabeth Taylor Estate Auction in December. According to our source, when the former “Real” housewife realized the stone was gone, “she started panicking so loudly that people outside the office could hear.” A frantic search ensued and, our source says, an “SNL” producer eventually found the gem on a set of stairs leading to one of the show’s soundstages. Later that night, a much calmer Zarin and Dina joined Lindsay and the “SNL” cast at Kibo restaurant in Gramercy for the show’s after-party. There, the source says, Lindsay “was on her best behavior,” while her high-spirited mother partied like a teenager. Perhaps LiLo was simply pacing herself. Our first source says that after the “SNL” after-party, the actress headed back to Le Baron to continue celebrating. So much more for being a homebody. A spokesman for Lohan tells us: “Lindsay was the consummate professional all week,” adding: “When someone says they are a homebody, it doesn’t mean they stay locked in their house every day and night.”