Drew Barrymore and Justin Long were caught making out again in public yesterday while waiting for a flight at Louis Armstrong International Airport in New Orleans. A source said:

"They are totally happy. They aren’t talking marriage yet. She just has fun with him, and they laugh at everything. That’s always been the way to Drew’s heart."

Drew has been married twice, first to Jeremy Thomas in 1994, then to Tom Green in 2001. Drew has also been engaged two other times, first to Jamie Walters in 1992, then to Fabrizio Moretti in 2004. Drew knows exactly what she’s doing, and Justin is just enjoying the ride.

"Despite repeated offers, Dunst couldn’t persuade Moretti to have sex with her. When pressed to consummate the relationship, Moretti told her he wasn’t over Barrymore."

- A source on Fabrizio Moretti rejecting Kirsten Dunst because he wasn’t over Drew Barrymore

I wouldn’t do Dunst either, even if I was desperate. Of course Barrymore wouldn’t be on my list either.

Kirsten Dunst has been gone on a dating spree this month. Her latest conquest is Strokes drummer Fabrizio Moretti, who just split from Drew Barrymore. On January 22, the pair lunched at Joan’s on Third in Los Angeles, and a source said, “They are friends, but she wants it to be more.” Of course she does, Dunst always seems desperate, but that doesn’t mean the actress is sitting at home on Saturday night.

On January 6, she was spotted with The O.C.’s Adam Brody, 27, who split with longtime love and co-star Rachel Bilson last year, at L.A.-area club Hyde.

A source says that Entourage star Adrian Grenier, 30, and Dunst, 24, hooked up on January 20.

A Dunst pal says the star is still reeling from her 2004 breakup with Jarhead actor Jake Gyllenhaal, 26. “Kirsten has been lonely,” says the source. I’d say Dunst is an emotional black hole, that should be avoided at all cost. It seems Dunst has been passed around more than a pot pipe at a Paris Hilton party.

Dunst’s rep could not be reached for comment, but then again what would he say that we don’t already assume we know?

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.