"In 11 years of #WWHL, Nene has been our most frequent guest, and she is always A BLAST," Cohen wrote on Instagram of the departing Real Housewives of Atlanta star. "NeNe nicknamed me “Buttercup” the first day we met, and still calls me that today. Through her whole run, she has always had a serious concern and drive to maintain the success and well-being of #RHOA. I am going to miss Nene on the show, but I’m hoping we work together again soon and will remain in each other’s orbits forever." ALSO: Bravo opens the door for Leakes' return: "She's been instrumental since the start and will truly be missed, and maybe one day she'll hold the peach again."