I'm not watching the feeds, so the only information I have is the clever editing done by CBS. I believe CBS distorts the reality of the house for the sake of "drama" and ratings.
That is the only reaction I can have to Allison and Dana's hugs and good words to each other after the HOH contest...that they don't "hate" each other as the show would lead us to believe.
I don't know about you, but if someone trashed me as relentlessly as those two trashed each other, said all sorts of nasty things about me... the last thing I would want to do is hug them.