Mr. Gower, a master of the passive-aggressive status update, lobbed this one in January: ?How is it my birthday is only one day, but my womans last a whole damn week?

Ms. Andrews, seemingly not one to watch a ball go by, took a full swing with this comment: ?GET OVER IT!!! UGH!!!!!!

Mr. Gower replied by calling his fiancée a name that cant be printed here, until the exchange became the social networking equivalent of shattered china at a dinner party.

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Eventually, Skyler Hurt, 22, a friend and a bridesmaid, intervened: ?Hey, you guys know we can still see this right …?

Its a question being asked a lot these days as couples, who once had to leave the house to fight in public, take their arguments onto Facebook. Whether through nagging wall posts or antagonistic changes to their ?relationship status, the social networking site is proving to be as good for broadcasting marital discord as it is for sharing vacation photos. At 400 million members and growing, Facebook might just replace restaurants as the go-to place for couples to cause a scene.

As score-settling on Facebook has grown commonplace, sites like Lamebook have begun documenting the worst spats (which also happen to be the most humorous). On Facebook itself, people can join several groups with names like ?I Dislike People/Couples Who Argue Publicly on Facebook.

For most couples, the temptation to publicly slander each other is overpowered by the instinct to prove to their friends how happy they are, reality notwithstanding. But for others, arguing in front of others comes as naturally as slamming doors.

While a hot temper (or two) is often to blame, there are people, like Mr. Gower, who view Facebook as an opportunity: How better to show everyone what his future wife puts him through?

?My friends have a biased opinion of her, and her friends have a biased opinion of me, Mr. Gower said. Broadcasting his gripes on Facebook is ?a way to get your side of the story out there to everybody. That way, they dont just hear her side.

Ms. Andrews shares her fiancés view. ?A lot of people arent with us if we have a fight at home,” she said. This way, ?All our friends can kind of comment on it.

For the record, both Mr. Gower and Ms. Andrews say they are happy together and anticipate marital bliss. They find their Facebook parrying hilarious, and are not bothered by any loss of privacy.

Privacy on Facebook is a squishy thing to begin with, as most members know. Not only are there those advertisements from companies that ? surprise! ? know where you went to college, but theres also the fact that Facebookaccidentally sent private messages last month to the wrong people. In one case, a Wall Street Journal editor found his Facebook in-box flooded with other peoples pillow talk.

To some couples who fight on Facebook, the battle for public opinion seems to be a driving force. Ryan Stofer, a 19-year-old college student from Hutchinson, Kan., said his arguments with an ex-girlfriend were little more than attempts to protect his reputation.

?Shed be talking to her friends on Facebook about how bad a boyfriend I was, and I would be like, ?No, I was decent,  he recalled. Eventually, Mr. Stofers friends became so fed up with the constant sniping that they started a Facebook group to protest it.

Leah Ackerman-Hurst, 34, a soon-to-be nursing student in Alameda, Calif., says she occasionally uses Facebook to vent to her friends about her husband, Caleb. In a recent status update, she called him ?Jerky McJerk Jerk after he insisted she get rid of their pug. She says the comments are meant as jokes (mostly), though friends often end up taking sides anyway.