Drew Barrymore insists she loves her single life, but just weeks after her split with Fabrizio Moretti, she already has tongues wagging. Barrymore, who hosted "SNL" last weekend, and Zach Braff "were very into each other" during the after-party at Sapa, sources said. They said Barrymore spent the night in the corner with Braff and "they were really focused on each other." Another spy said the stars’ friends are blabbing that they’re "definitely dating." A-listers who toasted the host included Cameron Diaz, Jimmy Fallon, and Ed Norton. A rep for Barrymore says, "There is no romance between Drew and Zach. They are simply friends."

Drew Barrymore recently broke up with her boyfriend, was caught making out with Bruce Willis, and now she has a great new movie coming out called Music and Lyrics with costar Hugh Grant. It comes out on Valentine’s day.

Actress Drew Barrymore may be on the cover of the latest Harper’s Bazaar gushing about her boyfriend of five years, Fabrizio Moretti (26) but the 31-year-old actress has ended her relationship with the Strokes drummer.

“Drew said they needed time off,” a source close to the actress said. Confirms a Moretti pal, “Fab is now living back in his old apartment.” The couple, who hooked up in April 2002, seemed a good match on the surface, friends say.

“Drew has always had a taste for subculture,” Barrymore pal Courtney Love said. But they had suffered some rocky times. Tongues wagged when she skipped the February 2005 nuptials of Strokes frontman Julian Casablancas; months later, the duo got in a public tiff in Santa Monica, California. In fact, “she broke up with him twice before this,” says a Barrymore insider.

At issue? Clashing personalities. “He’s younger, and she’s more worldly,” says a source of Barrymore. “He doesn’t like the Hollywood stuff. He doesn’t get her friends.” But don’t count them out just yet, adds the source. “This is exactly what happened last time they took a break.” After all, Barrymore couldn’t say enough about her man in the interview with February’s Bazaar.

“Right now I’m in a phase of ‘I’m not even your girlfriend. I’m your best friend who is madly in love with you,’” she bubbled to the mag. “The longest I’ve ever been with someone was like two to three years, so I’m in uncharted waters. Right now I’m more into championing him as a human being than gushing love for him.”

Maybe the actress will take her own advice and revamp their love life. “You need to reinvent your relationship if you want to continue being together,” she said in the article.

Reps for both declined to comment.