The problem with this series (I used to love it but now have pretty much stopped watching it) has already been mentioned by someone else; the characters aren't likeable. I personally, and most other people I know, wouldn't care at all whatever happened to most of the characters.
I cared about Grace and Rich. But now one's dead and the other is hardly in the series anymore. They could all die in a giant fire at the Blood's house and I wouldn't shed a single tear. And I cried at Ghost's of girlfriend's past.