Ashlee Simpson-Wentz Files for Divorce from Pete Wentz

Singer ends marriage with Fall Out Boy bassist

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Ashlee Simpson-Wentz wants out of her marriage. Citing "irreconcilable differences," the star filed for divorce from Pete Wentz in an L.A. court, TMZ reports.

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After embarking on a romance in 2006, the singer and actress, 26, wed Fallout Boy rocker Wentz, 31, in May 2008, and welcomed son Bronx, 2, that fall.

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In the filing, she asks for joint legal and primary physical custody of Bronx -- and seeks spousal and child support.

"They've been unhappy," an insider close to the couple tells UsMagazine.com. "They're living two separate lives."

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Back in June 2009 -- just 13  months into their union -- Us Weekly reported serious friction and combative fights between the newlyweds. "They fight constantly," a source told Us at the time. "She is seriously considering leaving him....They're in different places."