A WEEK before she announced she was quitting her magazine, former "Queen of Nice" Rosie O'Donnell shocked patrons at the Cafe Carlyle with her not-so-nice behavior. O'Donnell was underdressed and overly loud on Sept. 9 when she sat with her pregnant girlfriend, Kelly, in the front row at her pal Christine Ebersole's debut cabaret performance. O'Donnell repeatedly yelled out between songs, "She's great! Christine is wonderful! Christine deserves an Emmy!" It prompted one audience member to shout back: "She's already got one - shut up!" Rosie said she didn't mean to annoy anyone, explaining she was just being Ebersole's cheerleader....