I think we're all a little bit emotionally sadomasochist,or why would we be watching this show over and over again knowing what's to come? But you are so right about the ending being that much more of a punch because of the overall atmosphere of the show.It's like,yeah there were happy,comic,cutesy,friendly moments but after a while you could feel some sort of serious tension present around the characters.Obviously happy endings are great but this ending-ugh-it was perfect,I'm so glad they actually gave us Shen Wei and Yunlan until the last second of the series.And thanks to that we have a whole lot of opportunities for fix-its and AUs. :3