Kyle Richards Apologizes for 'Housewives' Brawl with Sister Kim

Bravo's recent season finale episode of 'The Real Housewives of Beverly Hills' wrapped up with a shocking scene: Kyle Richards and her intoxicated sister Kim (both former child actors, and aunts to Paris Hilton) tore into each other verbally, and just about came to blows inside their limo.

For days, fans of the typically frothy show have been buzzing about the dark episode. Did Kyle (pictured here, wearing pink) really call her sis "insane," "sick," a "liar" and "demented"? Did co-star Adrienne Maloof barely prevent a physical assault?

Now, Kyle is sorry for the blow-up with Kim, who has since entered rehab. On her Bravo blog, Kyle writes candidly about that night, and her bond with her sister.

"The events that transpired that evening were quite unfortunate and should never have occurred on, or off, camera," Kyle says. "We both said and did things that we regret. My sister and I love each other very much....You may be thinking, 'You have a funny way of showing it.' And you're not wrong. However, our arguments were never about what was happening at that moment. My mom used to say, 'They're crying about the apples, but it's really the oranges,' and that's exactly what was happening here."

"After this horrible argument between Kim and I, we didn't speak for a long time. My heart was broken and I suffered an incredible amount of anxiety and panic attacks. Next to losing my mother, this was the most difficult time of my life."

In her blog post, Kyle never indicates whether she's reconciled yet with Kim in person (although she seems to speak for both when she says, "We want to move forward and put this behind us.")

She continues, "It feels so strange to even refer to it as an 'episode.' This is my life. This is Kim's life. I wish we were just characters on television, but this is all too real. That night never should have happened. It was incredibly difficult to go through in the first place and it's even more difficult to watch and relive it."

The Richards sisters will likely relive, or at least address, the controversy on the series' reunion special, hosted by Andy Cohen, airing on Bravo this Thurs., Jan. 27 (9 p.m. ET).