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It's almost official.

After weeks of headlines about their separation, Yolanda Foster has officially filed for divorce from her husband of more than four years, David Foster.

Us reports the 52-year-old "Real Housewives of Beverly Hills" star cited "irreconcilable differences" in court documents filed in Los Angeles on Jan. 11. She also requested spousal support.

Although the couple signed a prenuptial agreement, David reportedly shared the proceeds from the sale of the mansion the Fosters once called home with his estranged wife. According to TMZ, he footed the medical bills as Yolanda battled Lyme Disease, as well.

"It is so frustrating to see headlines questioning her chronic debilitating illness," David told the site last month, adding that he's been "proud" of the strength she's displayed in fighting to get well.

The couple announced their split on Dec. 1, telling press: "We've shared nine beautiful and joyous years together. During that time we experienced love, friendship and the inevitable challenges that come with managing a marriage, careers, blended families and health issues."

They have apparently remained on amicable terms since then.