Basically, you know that Rob, Alex, Heidi and Jenna held the power, right? They were laying around doing nothing because everyone knew they could just pick off Matt, Butch, and Christy. It was just a matter of time.
Well, Alex made a fatal error. He said to Rob, basically, "you know that when it's just the four of us, you'll get voted out first if I get immunity. Just so ya know." So Rob was like, I'm not in this game to make it to the final four and that's it, I'm in it to WIN.
So Rob went ahead and switched -- he made an alliance with Butch, Matt, and Christy and voted Alex out!!
The previews for next week indicate that the "hot" gals are NOT happy with ol' Rob...