Look, we have been down this road before. We aren't seeing their dog acting on the planet scapus in the terron galaxy. WTF ever that means.
Sure it is a tv show, but their personalities come out and we are seeing exactly who they are, regardless of what levels they stoop to, however manipulative they are and it doesn't mean they are bad or evil, they are they way they are.
Watch the exits interviews and other clips where they are one on one. Same people, same personalities.
I am not claiming to know every intimate detail about someone, but when you have some life experience and you have been in relationships, run a business like I do that deals with a clients and suppliers, etc. on a personal level, play team sports, have children...
The point is people are not that hard to read, really they aren't when you see how they talk, body posture, vocabulary, moods, abilities...and yes they are readable even on an edited and scripted tv show where they are "acting" some of the time, as in not being themselves. After so many days and under stress and duress from being out there, we are seeing EXACTLY who these people are. Early on, not so much, but as the show progresses, we see them as they are and what they are willing to do.
So in a "real life" situation where something similar happens and two are fighting over possession of something, I have no doubt that Amanda would have caved in and Danielle would have held her ground and not given in with regards to the clue, exactly as they did on the show.
Oh and by scripted I mean they do retakes where the survivors retell, re-"act" or are told to say something in a different way, or things get edited out of order to manipulate a different take or appearance on a scene, which are all known facts.