No doubt in my mind these two fucked...Ethan is dead-on correct. Aubrey played the part of a lying sack of shit beautifully - it was written all over her face. And did you see that smirk on Cameron's face after the tussle in the ocean? He knew...and he loved it.
shareyeah I agree about the smirk ha ha , and as Ethan said the fact that Audrey called Cameron an idiot in front of everyone is also a pretty good hint that they are more "familiar" than before, even if she still probably hates him for his arrogance and self indulgence.
Also when they have dinner at the very end I love how Cameron acts joyfully and all happy as if nothing happened, loved his acting!!