You know it's really over when a breakup affects a Twitter handle. So to make it officially over and done with, Demi Moore is no longer @mrskutcher, and is now @justdemi on Twitter. Though Demi and Ashton Kutcher announced the end of their marriage last year, Moore has been agonizing about her Twitter handle. She asked her 5 million followers for change suggestions, and discovered that many possibilities had already been claimed by others. (An imposter has already snatched Demi's old @mrskutcher moniker, but don't be fooled, warns MTV.) It was "so hard finding a name that was fun somewhat playful and available," she tweeted. So "for now it will be @justdemi. It could grow on me," she tweeted.