You have spent time and effort in the underlying themes of the show, maybe bought books on various critics talking about the cultural and significant references about the show. You have not just invested time, but also money.
You find other people who feel as passionately about the show, and the characters as well as the actors as yourself. You take up various fandom interests. It is your main hobby. When you come in the internet, a lot of your time is spend persuing messagesboards, sites, fanfic, art anything concerning the show. You are almost word perfect, these characters live in your head.
Then it changes meduim, the team changes, the actors are no longer there. The deeper message of the show seems to have altered, the characters are behaving in a way you didn't see on the show. The artwork is childish, and the characters seem to have regresses to younger version of themselves and be stunted in comparison to the great character development you witnessed on your beloved TV series. The great series seems to be being used to poke fun at others, inclucing certain fans.
Wouldn't you be hurt, angry and feel betrayed?
Yes this might be about Buffy Season Eight at Dark Horse, and the way IDW are treating Angel now