No final do Titanic, por que Rose joga fora o colar?

Eu mesmo me perguntei isso quando vi o filme pela primeira vez, e isso realmente me incomodou -- Eu simplesmente não entendi.
Rose não parecia ser uma velha maluca. Claro, ela se divertiu - ela se tornou uma atriz, criei bebês, voou aviões, fui em montanhas-russas, e andava a cavalo "como um homem" - tudo o que poderia ter confundido seu cérebro, e a tornou muito menos prática sobre esse tipo de coisa do que eu pensava, dada sua veia corajosa. Quero dizer, vamos lá, ela sabe em primeira mão que você não pode levar isso com você, e ainda, ela estava tentando. Parecia inconsistente com seu personagem. Não conheço nenhuma velhinha que não seja totalmente barata, quando se trata disso. Minha mãe mandaria meus filhos $10 cheques para seus aniversários - às vezes. Seriamente, agora.
Então, aqui está um diamante azul de valor inestimável, e ela joga para o lado -- o que é isso? A família dela, para quem ela pode muito bem ter mentido durante anos, shouldn't benefit from her story? Endow a woman's college or something, for crying out loud! The survivors or family of people who perished on the Titanic, shouldn't benefit? Or perhaps even Cal's heirs, who were left with nothing when he offed himself after the 1929 crash, they should be stuck with the sins of their father? (afinal, Cal did give her his coat, and the necklace was inside the pocket - you'd think she'd have forgiven him, by now). Maybe Rose wanted to avoid all those legal inheritance issues and battles; could be simple as that.
Pior, no entanto, she's letting Brock and other divers and would-be treasure-hunters have it. Practically, this doesn't make that much sense; sooner or later Brock's probably going to find it unless some big fish eats it first, and she's gotta know that. Just because you make a grand gesture doesn't mean someone's not going to come along and clean it up after you, and sort of blow it, sooner or later. Consider architectural preservation battles, or how many art treasures have been lost or destroyed throughout history. Hanging gardens of Babylon? Library at Alexandria? All gone. And what about the pyramids? Treasure-hunters, or rather, tomb-robbers, persevere and don't have a lot of respect for romance, except for its droppings. Thank goodness for curses! Thinking this through, Rose's action is an unintentional bummer, and depressing comment on the naivete, and temporal nature of "eternal" amor.
Talvez.
And maybe she just was a crazy old lady - I know a lot of them, and aspire to be one myself one day (not this week, Espero), so why not. Sometimes it's better not to think too much or overanalyze, especially when watching BIG pictures. It could be argued that old Rose's action was selfish and self-absorbed; but I do believe that that's exactly what Jack had made her promise to do, as he slips into the freezing waters - he makes her promise to live, selfishly and fully, without regard to structure or convention, e para "never let go" of that promise.
By looking at some fan sites, I discovered that there was an alternate ending proposed; Rose's granddaughter and Brock try to stop Rose at the rail from tossing the necklace into the murky depths. Cameron cut the ending because supposedly he decided that it wouldn't matter to an audience whether or not Brock got redemption. Apparently, Rose lets him hold the Heart of the Ocean, and then he gives it back to her; she then drops it in the water ceremoniously, understanding...something. I'm sure there would've been a shot of Brock, nodding ponderously, looking recalcitrant about his greed, and humbled by witnessing an eternal love (while keeping his fingers crossed that coordinates of the location were being recorded, for his next dive, once the old lady had had her nightcap and was all tucked in).
It's much more romantic to simply surrender to the story, emotionally, despite that little voice that...wait, why didn't Jack just knock off one of those dead people off a fridge and get out of the water, and live, também? Or...didn't she care about her mom, at all? Or...was he really THAT hot? He can't have had good teeth. Realmente. Or...well, whatever.
Upon learning that there's no record of Jack, em qualquer lugar, old Rose says: "Não, there wouldn't be, would there?...A woman's heart is a deep ocean of secrets. But now you know there was a man named Jack Dawson and that he saved me...in every way that a person can be saved. I don't even have a picture of him. He exists now...only in my memory."
Early in the film, Cal gives Rose the Heart of the Ocean, he says: "Open your heart to me Rose". And she covers the diamond with her hand. At the end of the film, old Rose lets the Heart of the Ocean go, having opened her heart to Jack and his memory. She lets go, releasing Jack's memory and her secrets, and letting go of her promise to him to live, because she knows her time is done. Rose's heart, her Heart of the Ocean, her will to live, rejoins the deep ocean from whence it came.
Geez, now I'm getting all weepy.

