Photo: Charles Sykes/Bravo/NBCU

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Kathryn Dennisis seeking changes in her child custody agreement with exThomas Ravenel, who wasarrested and charged with assault and battery.

PEOPLE confirms theSouthern Charmstar, 27, filed for a modification of custody and visitation on Oct. 26. Dennis and Ravenel currently share 50/50 custody of their two children: 4-year-old daughter Kensie and son Saint, who turns 3 on Nov. 17.

Dennis and Ravenel’s attorneys did not immediately respond to PEOPLE’s requests for comment.Us Weeklywas the first to report.

News of Dennis’ filing comes days before Ravenel’s Nov. 5preliminary hearingfor an assault charge. Ravenel was arrested on Sept. 25 andcharged with assault and batteryin the second degree.

Kathryn Dennis/Instagram; Inset: Charleston County Sheriff’s Office

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Dennis had previously lost custody of her kids and entered rehab in 2016 after she tested positive for a drug, and spent two years proving her sobriety through random drug tests in order to gain that custody back.

Dennis previously opened up to PEOPLE aboutthe painshe felt when shelost custodyof her children.

“It’s absolutely not something I thought I’d ever face. It all happened so fast. Losing my kids, I just remember falling on my knees and breaking down like every single day,” she said. “When you don’t have your children with you and they’re at such fragile, young ages, it just feels like part of you is not there.”

Thomas Ravenel mugshot

A source previously told PEOPLE that Ravenel’s arrest is connected to her allegations.

Ravenel denied Dawn’s allegations through his lawyer, as well as a separate sexual assault accusation from a woman he met on Tinder in 2015.

In late September, Bravo exclusively confirmed to PEOPLE that Ravenel will not be returning toSouthern Charmas a cast member. Dennis is currently filming season 6 of the popular series.

source: people.com