Lisa Vanderpump opened up about an abusive relationship during Monday night's episode of The Real Housewives of Beverly Hills season six reunion and on Twitter, her former co-star appeared to call her out for lying.

As the episode aired, Brandi Glanville gave her thoughts to her fans and followers on Twitter, and after hearing what Vanderpump had to say about her violent past relationship, Glanville sent out the following tweet:

After a fan commented on Glanville's tweet, going into detail about the assault she experienced many years ago.

As fans will recall, Glanville slapped Vanderpump on the cheek during The Real Housewives of Beverly Hills season six, and right away, she faced backlash from her co-stars and from fans online.

In a Bravo TV blog after the incident, Vanderpump opened up about what she seemed to be a "violation."

"So the slap...the long awaited slap that could be heard echoing through the Hills of Beverly," Vanderpump wrote. "Now you know I have never insinuated that it was that hard. I had a small scratch on my upper lip from her acrylic claws, but the strength of the slap was not the issue. I think in her own distorted mind she thought this was playing, but no, it didn't feel like that. First she pushed me...OK...But it wasn't the actual slap. It was the violation...I haven't had a hand laid on me since I was a child."

"I was shocked, reeling," she continued. "I immediately retreated to the bathroom--unfortunately it was the men's. Didn't realize it at the time, locked the door, and desperately tried to regroup and pull myself together as the tears flowed. I chastised myself and knew cameras and friends were outside."

The Real Housewives of Beverly Hills season six concludes next Tuesday night at 8 p.m. on Bravo.