The outlet further reported that there are no future hearings scheduled for the case and Christian has not yet responded to the filing.
The couple, who tied the knot in 2009, share two children together. Lizzie first appeared on the Bravo hit reality series in Season 9 and has made cameos on the series following her one-season stint on the show.
The news comes just weeks after Lizzie's former co-star Shannon Beador, had filed for divorce from her husband of 17 years on December 1.
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