In The Nightingale and the Rose, is the nightingale's catastrophe caused by her fate or it is her mistake to be impulsive?

Oscar Wilde's "The Nightingale and the Rose" is a short
story that illustrates the philosophy of true love in the form of the
nightingale.

The nightingale is the symbol of all the
things that should be in place for love to be eternal: The will to sacrifice, the
acceptance of failure, even the willingness to let go just for the sake of maintaining
the capacity of love in your heart.

In contrast, the story
also shows how isolated that philosophy of eternal and true love is from the reality of
life: Not everyone believes in true and eternal love. Some people are quite happy living
superficial lives and experimenting for the moment.

That is
what the student is: Simply capricious about the girl for whom he wants the red rose. He
does not believe in passion, nor sacrifice; he only believes in his instant
gratification. Therefore, it is no surprise that he takes the sacrifice of the
nightingale for granted, and ignores completely the magnitude of what the nightingale
did for him.

In conclusion, the nightingale does what she
feels it  the correct thing to do in order to maintain the idea of pure, eternal, and
true love alive. She does not die for the student, nor for the girl; she dies for the
ideal that she embodies, and in order to maintain that ideal alive in the minds of those
who witnessed the moment of her death.