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 blowup 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 in a statement released to Bravo. "We both said and did things that we regret. My sister and I love each other very much."

On her blog, Kyle says, "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."