Answer:
Often we’re just sad that the story ended, even those that end happily. That’s why series books are so popular, because we want more time with the characters and their stories. That’s why we wait for the sequel to the movie, or the next season of a TV series.
If you feel sad, the author, producer, or whatever has done their job. Not sure you can fix this. Just roll with it and wait for the next installment or if there isn’t one, reread the book or rewatch the movie.
Step-by-step explanation: