3. Deb Is A Mess
When we left Deb at the end of season 7 she had just murdered Laguerta. The emotional consequences of murdering Laguerta and covering for Dexter all through the last season have finally caught up to Deb. It seemed as though in season 7 she was barely holding herself together but in between the end of season 7 and the beginning of season 8 she has completely fallen apart. The very first scene featuring Deb in the premiere showed that she's doing drugs and is involved with a strange man. Deb quit the police force to become a private investigator, she doesn't answer Dexter's calls and her old friends from the police force rarely hear from her. Last season she compromised all of her beliefs and everything she worked so hard for to protect Dexter and now she proclaims that she hates him. You really can't blame her for feeling hate toward Dexter after all he put her in some terrible situations. In any case Deb is off the rails and it looks like things will get worse before they get better.