What adjective best characterizes Jane Bennet's demeanor in Pride and Prejudice by Jane Austen?

The full passage from Pride and Prejudice is:

This naturally introduced a panegyric from Jane on his diffidence, and the little value he put on his own good qualities.

Elizabeth was pleased to find that he had not betrayed the interference of his friend; for, though Jane had the most generous and forgiving heart in the world, she knew it was a circumstance which must prejudice her against him.

"I am certainly the most fortunate creature that ever existed!" cried Jane. "Oh! Lizzy, why am I thus singled from my family, and blessed above them all! If I could but see YOU as happy! If there WERE but such another man for you!"

"If you were to give me forty such men, I never could be so happy as you. Till I have your disposition, your goodness, I never can have your happiness. No, no, let me shift for myself; and, perhaps, if I have very good luck, I may meet with another Mr. Collins in time."

The situation of affairs in the Longbourn family could not be long a secret. Mrs. Bennet was privileged to whisper it to Mrs. Phillips, and she ventured, without any permission, to do the same by all her neighbours in Meryton.

The Bennets were speedily pronounced to be the luckiest family in the world, though only a few weeks before, when Lydia had first run away, they had been generally proved to be marked out for misfortune.

Based on the information in this passage, which adjective best characterizes Jane Bennet's demeanor?

Jane Bennet's demeanor in Pride and Prejudice by Jane Austen would best be described as exhilarated.