Frankie was extremely lucky that the challenge was actually easier for one person to do than two. That, and Caleb is simply terrible at strategy. How on earth would telling people about his sister help Frankie's game in any way? It really seems like he was just dying to tell people who his sister is. I liked Frankie in the beginning, but he's just gotten more annoying over time. He got way too comfortable with his position in the house and lied to too many people too quickly. The fewer people in the house only means they are going to be talking to each other more often, especially when their only allies get voted out. Things were bound to blow up on Frankie, especially after he talked to Nicole. That was a really stupid move.
Victoria seems to be wise to a lot more than the producers are letting on to the viewers. She's been voting with Derrick's alliance and after the last eviction, at the end of the episode, Derrick was clearly talking strategy with her. Then the cameras suddenly cut away from their conversation and showed some useless banal chatter. I wouldn't be surprised at all to see Victoria in the final four or even the finale.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian