Adrienne Maloof and Brandi Glanville, stars of The Real Housewives of Beverly Hills, continue to dislike each other and in a new interview with Life & Style, one accuses the other of "the ultimate betrayal."

In response to Glanville recently revealing that Maloof's ex-husband Paul Nassif apologized to her over the lawsuit, Maloof said it was "extremely hurtful" and she felt "the ultimate betrayal" by Glanville. The model and mother of two has also continued on a close friendship with Nassif over the last two months, according to the magazine, and Maloof said she thinks Glanville's motives are anything but genuine.

"I believe getting close to Paul is a ploy on Brandi's part to make herself more relevant," Maloof said. "I feel the sudden friendship with him was thought out and vindictive."

Glanville denied accusations of having an alterior motive for befriending Nassif - saying "we're friendly" and "he's very nice" - and in her defense said unlike words about Maloof.

"She [Adrienne] is not a very nice person; she pretends to be," Glanville said. "I called her to talk to her about the situation. But it's hard for me to apologize to someone when I feel like they owe me an apology prior to that."

In The Real Housewives of Beverly Hills, all the castmates except for Maloof and Kim Richards took a trip to Las Vegas hosted by Glanville. While the women enjoyed a pole dancing class among other things, Maloof in Los Angeles worked on her new handbag line. In a preview clip for episode 12 "Kim Nose Best," which airs Monday, Maloof is seen meeting with the creative director and president of California Accessory Group, looking at designs for the bags in her collection.

At the same time in Las Vegas, Glanville tried to entice the other Housewives stars to pole dance in a class led by a dance instructor. Many of the women look hesitate but most of them - including Lisa Vanderpump and Yolanda H. Foster - were willing to have fun and try the pole. 

Click here for more spoilers on episode 12.

Watch The Real Housewives of Beverly Hills Mondays on Bravo at 9 p.m. ET.