This is a really hard decision.
Michael voted for Shanna, and Cam voted for Niki. I've been working with Shanna, Cam, and Michael all game, so it makes sense to stick with that foursome.
However, Niki came to me with information about how Shanna came to her with the same deal she came to me with, explaining how Michael-Amanda-Jeremy were together and she needed to help get us out. Niki, the truth always was that I was with Amanda, and Amanda was with Michael. Michael and I were never together until we were forced to be.
The closest twosome in this game is Shanna and Cam. They are the most dangerous duo left, and it would be an idiotic move to keep them in this game.
That being said, Niki, I choose to evict you. I made a promise to Shanna, and I intend on keeping it. She's probably worked harder than anyone at this game, and I would feel like a complete asshole if I took her out now.
Niki, it was really great working with you this round. I wish we had been able to work together sooner, but a lot of hearsay from other players got in the way of our years-old history. Maybe we'll get another chance someday.