From left: Camille Grammer, Kelsey Grammer and Kayte Walsh
Albert Michael/Startraks; Splash News Online
Camille Grammer is fighting back against estranged husband Kelsey.
Camille, 42, is filing for primary custody of the their two kids, Mason, 9, and Jude, 6. This is less than a month after Kelsey, 56, also sought primary custody.
In Los Angeles Superior Court papers, the Real Housewives of Beverly Hills
star claims Kelsey's filings were "done in order to create a false impression to the media and to wrongfully disparage" her.
"She will continue to fight aggressively to keep her kids and keep her kids together," a source close to Camille tells PEOPLE. "Kelsey's not been civil. [Camille] has tried to reach out without lawyers on multiple occasions and been rebuffed."
The source, who says Camille "would love to have a relationship with Kelsey for the kids' sake," explains that it is impossible because "Kelsey will not communicate with her."