Married happily for the rest of their lives?
Do you think, that their love(as the representation is in this film rather than real life) was just the intensely felt 'first love' and would have come to a natural end? Or would they really have felt so connected if they had been able to live a lot longer together?
And therefore would you agree that it some ways it was better that he died prematurely so that even though it hurt her deeply and forever, she would remember their love, and him, and it's best.