Did Bill Cheat on Sookie?

Not only did Bill cheat on Sookie with his maker, Lorena, but he allowed the Rattrays to beat her close to death in the series' premiere episode so that he could trick her into ingesting his blood, forcing them to bond under false pretenses.

Why did Bill break up with Sookie?

According to Bill, Lorena ordered him to leave Sookie and threatened to kill her. While Bill is with Lorena, it is revealed by Eric and Pam that he had contacted them and told them he was leaving Sookie and he wanted to make financial arrangements for her care.

Does Bill betray Sookie?

Season Three, Episode 12: Sookie Goes to the Faerie Realm After Learning Bill Betrayed Her. ... Despite Bill's protestations that he truly did fall in love with Sookie, he corroborates Eric's story. Heartbroken and devastated over Bill's betrayal, Sookie rescinds both his and Eric's invitations to her home.