In a new Bravo blog, the controversial reality star admits she stepped over the line on Monday's episode of The Real Housewives of Beverly Hills when she teased how she knew a huge Maloof family "bombshell."
Not usually one to recant her words, Brandi admitted she made the wrong move throwing dirt against the loaded -- and litigious -- Adrienne, who alluded to a potential lawsuit after Brandi teased the dirty laundry-esque revelation in the episode.
"I said something I shouldn't have said and I am sorry and I now regret it," Brandi wrote on the blog. "I know, it's shocking right? My mouth gets me in a lot of trouble, but this time I've pissed off the wrong rich person."
She continued, "It is so frustrating when Adrienne or her people say something about me that isn't true or discuss me as a parent, I think she has met my kids one time. Normally I would laugh it off. I mean I've had my fair share of negative stories written about me through my divorce. But when the lies involve my children, like any good mother, ALL BETS ARE OFF!
"No one is perfect," Brandi, 40, said. "We all make mistakes, and if I could take this back I would. Trust me! I can't, so now I just have to deal. Boy is it going to be expensive!"
Brandi -- who's been on a Twitter bloodbath with ex-husband Eddie Cibrian and his current wife, LeAnn Rimes -- said her tension with Adrienne had "been boiling for some time" and Monday's show marked its' "breaking point" whereas she was concerned.
As for the way Paul reacted in the episode -- calling Brandi "that b*tch"-- she said she understood "he was just defending his wife's honor" before taking ANOTHER shot at Adrienne.
Watch the video on RadarOnline.com
"I don't think even he was aware (at the time) of how underhanded she could be," Brandi wrote of Adrienne, who is now estranged from Paul in what has been a contentious split.
Brandi said in a tweet that aired after the show that the inflaming events between she and Adrienne came "after the reunion & off camera so its hard to see why Im so upset with her!"
The Real Housewives of Beverly Hills airs on Bravo Mondays at 9/8c.