Bill still loves Sookie and is always there for her. But I must say he is more interesting in the show than in the books. The writers for the show will keep his presence known with the marriage between the actors.
In the next book, witches put a hex on Eric and he looses his memory. Sookie, of course, helps him through the transition but in the book she kills Alcide's ex, Debbie, in the end. This season has seen Debbie but she'll be back. She's a good character to hate.
The whole thing with Sam irritates me to no end. His character in the tv show has changed with the introduction of his family. We find out through flashbacks that he was a theft and has killed before. In the books, Sam is a reliable were who is a stable character throughout the books. Where are they going with Sam?