I agree that it is not a good sign for anyone to be posting pre-finale. (I think it will be final 2, not 3, which makes for a better game, IMO).

I do think Charlie goes far in the game though, at least final five.

There are 3 pics of Charlie and Marcus together in the photo gallery for this episode.

This is the main relationship for Marcus as far as the story of the season goes.

Three scenarios come to mind:

1) Charlie and Marcus take each other to the final 2 even if it isn't in their best interest (Colby/Tina);

2) One betrays the other and it becomes the decisive losing vote on the jury (Kelly/Sue);

3) One is on the jury and the other in the final 2, and the one on the jury decides to stay loyal to the alliance and is the decisive winning vote (Rudy/Rich)