Kelly Rowland had a diva moment when she walked out of NBC’s Today show on Thursday, February 15, as she was displeased with her dressing room, a source claimed. According to an insider, the actress was a guest on the 8 a.m. hour of the morning news show and then was going to fill in for Jenna Bush Hager as guest host of Today with Hoda & Jenna. However, the singer, 43, dropped out last minute due to her dressing room accommodations, putting Hoda Kotb in a bind. “Kelly and her team were not happy. They did not like the dressing room, so they decided to pull her off the show, leaving [Kotb] wit…