start of the game

Ok , I guess I should have picked up on this earlier , but even if I make it through this round, I am unlikely to progress any further. Gretel clearly offered me an F3 , which clearly means that she already has a deal F2 with someone (Baymax). So this is the question...IF I win veto tonight, who do I vote for ?? If I vote for Pumba , that leaves up against F2 partners , but if I vote for Gretel, I'm stabbing a long term ally in the back, and I can't do that...I know it's just a game , but it's not my style