>>211707415i'm this anon
>>211707218>>211706424so you know i'm validated
i get where you're coming from with this thread, you feel a sense of loss or frustration that a character made a stupid move - which, since none of it's real - means to you that the production team made a stupid move. but what you're digging at here is really just a matter of life and fiction, they had a different idea than you did of how to take the character.
does anything in her personality really imply she'd throw herself off a cliff? not really, but she's sort of a non-character to begin with. is it perhaps reasonable to assume she was in shock and did it mindlessly to escape? maybe. is it also a possibility she suddenly and inexplicably steeled herself in an impossible situation, and, rather than please someone she sees as an enemy, she dies just to steal that pleasure from him? also possible
but what you're asking fundamentally is, "why did the creators of this fiction decide to do the fiction this way" and there's no good answer to that unless you want to dig through ancient interviews and tabloids and press articles and all that shit.
i can tell you that, logically, though, the movie was heading towards this ultimate outcome always. it's called "the last of the mohicans" - it's a war movie, a romance movie, a movie with revenge and grief and irrational decisions made out of fear and confusion. it's DOUR and it's meant to depict the quiet but epic story of a handful of people who cross paths in unlikely intersections in a very tumultuous time in america's history and those are all the ingredients for a bittersweet ending at best