Camile Grammer won't go down without a fight. After news broke that her ex-husband, Kelsey Grammer, had filed for sole custody of the couple's two children, the 'Real Housewives of Beverly Hills' star is ready to fire back.

"She will fight like hell to keep her children with her, being raised by her, exactly where the children wish to be," a friend of Grammer told PEOPLE.

Grammer's divorce from Kelsey was finalized earlier this year after 13 years of marriage. The 'Frasier' star moved to New York City last year to work on Broadway and married girlfriend Kayte Walsh in February.

"He abandoned his family and got married within months of separating from Camille, all of which speaks volumes about his parenting and his respect for his current children," the reality star's friend continued.