No more short pants romance for jilted Jessica!

Jessica Simpson is now swearing off men for six months after QB Tony Romo sent her to the showers, sources say.

Since her marriage to Nick Lachey collapsed in 2005, Jessica has gone from one dead-end relationship to another.

“She needs time to clear her head, so she’s putting dating on the back burner,” said a source close to Jessica.

Before she hooked up with the Dallas Cowboys hunk in late 2007, Jessica romanced a conga line of “love ‘em and leave ‘em” types, including comic Dane Cook, Jackass star Johnny Knoxville, rock singer Adam Levine, actor Jared Leto and emo-rocker John Mayer.

Now the usually boy-crazy beauty plans to focus on “inner growth,” said the source.

“Jess knows she’s overly needy and tends to define herself by the men she’s with,” explained the source.

“Jessica wants to figure out what she does to repel men and fix it,” said the source.

“For the time being, she’s refusing to be set up, she doesn’t want to date, and she’s definitely avoiding meaningless hookups.”

Source, Bauer-Griffin