"She's very unstable," Kim says of "Real Housewives of Atlanta" co-star Nene Leakes.
"I haven't seen you since your big knockdown, drag-out with Kenya at NeNe's party," host Andy Cohen said to Kim. But before Kim could comment, Anderson Cooper -- also a guest on Sunday's "WWHL" -- fueled the fire, asking: "Why do you hate Kenya so much?"
"I don't even know her!" Kim shouted back. "But when I was at Shereé's housewarming, I was like, 'Don't walk around somebody's house in their basement. It's not finished. You went around there. It's not your place. The party's on the first floor, sweetie.' She's like, 'Why don't you worry about your husband and him getting a job?' And she just started going nuts, and I was like, 'Whoa.'"
It was at the grand opening of Chateau Shereé last season that Kim and Kenya met for the first time. Kenya and Shereé had been going back and forth about whose house was "more finished," so when Kenya left the party to go snoop around, she discovered the basement was still under construction and went back upstairs to throw it in Shereé's face.
Andy then played a clip of Kim and Kenya's most recent feud at a party NeNe threw on this season of "RHOA." When Kim began asking Kenya incessantly about her surprise marriage to Marc Daly -- insisting that he "didn't exist" -- Kenya told Kim to worry about her life and the daughter she pimps out for John Legend tickets, referencing Kim's tweet to Chrissy Teigen from earlier this year that read, "Who does Brielle have to blow in order to meet him?" NeNe later told Bravo cams Kim was the one who egged Kenya on.
"NeNe wasn't there at Shereé's housewarming," Kim said in response. "That was that, and this time, I mean, you're seeing 10 minutes of a four-hour party. We were talking smack in the kitchen at NeNe's a little bit."
"Well, if you were talking smack in the kitchen, I'm wondering why we didn't show it," Andy said.
Then Kim let out a very heavy sigh -- accompanied by an eye roll -- after a caller asked about the current status of her relationship with NeNe.
"We've always kind of been on this roller coaster," Kim said. "I never know how she feels about me. Honestly, I don't. She's very unstable. We've been through some stuff, and she's said some very disrespectful things, I feel like more recently, that are not tolerable. Racist, for me, is something that I'm just not, and I don't want my family to go through it. It's been a little rough."
"I know deep down, NeNe has a big heart, I just sometimes think her ego gets in the mix, which makes it tough," Kim added. "Never say never, but I'm pretty much finished."