A Happy Ending

I believe that everyone love a happy ending. No matter in books or movies, all of us always root for the happy ending. I just finished a book with a happy ending, but different with what I have imagined of. The happy ending in the movie is so much better as compared with the book that I just finished today. Is there a happy ending when in the end, everyone is dead, then you miss all your families, then your old home and everything. I know that it is more to reality in our life but still, people expect a better happy ending. Don't you think so?