Denise Richards and Richie Sambora split following argument in Nashville
"It's over," says a source. "They had an epic argument in Nashville and Denise told Richie she couldn't continue the relationship any longer."
Last week, Richards' ex-husband Charlie Sheen -- the father of her two daughters -- told Rolling Stone magazine that he still wants to sleep with Richards. "She still looks f**king great," he said. "Do I want to? Yeah! Does she? Don't know."
Richards will appear in Sheen's new television show, "Anger Management," which premieres on FX on June 28 at 9 p.m.