The environment forces you to be utterly dependent between "action" and "cut" because the environment is perfect on your fellow actor. So as an acting exercise, it's absolutely thrilling that the focus that we had to bring to each other echoed in life, echoed in art. And when you get that parallel, it's really thrilling and it's full of surprises, but it all has a logic.
There is no such thing as unlimited trust. At some point, all beings with free will can, and will, betray you when you're no longer pursuing the same goals.