Tamra and Vicki are despicable

I cannot get this preview clip from the reunion out of my head. I'm not sure what's worse--Tamra's vicious attack on Gretchen, or Vicki's smug smile as it's all going down.

I'd post the video for you here, but the embed functionality at the new Bravotv.com isn't up and running yet. But really--click on the link. Appalling.