The source of Demi Lovato’s bitchiness finally dawned on me, and I’m embarrassed to admit I didn’t see it earlier. She lost her last act! That sure explains her misplaced hatred for Cowell’s next sensation, Emblem 3. Her barbs included, comparing the group to One Direction and The Jonas Brothers (as if that’s bad) and later accusing them of constantly “standing together” instead of “commanding the stage.” Bye, bye Demi. Maybe next time you should listen to Simon when he mentors you, instead of mentoring your own contestants.