This is about as shocking as Lindsay Lohan admitting she had/has an eating disorder. It was less than a year ago when Denise Richards filed for divorce, and less than five months ago when crazy Denise decided to give the marriage another go.

The topsy-turvy relationship of Charlie Sheen and Denise Richards appears to be back off, as her rep tells PEOPLE: “Denise is moving forward with divorce proceedings.”

On Wednesday, lawyers for both Sheen and Richards asked that the case be removed from Los Angeles County Superior Court and handed over to a private arbiter, retired commissioner Jill Robbins.

A source close to the couple tells PEOPLE: “I don’t think this relationship (between Richards and Sheen) is going to work.”

No kidding.

Charlie & Denise Divorce Back On [People]