Looking at the ratings given by other reviewers for each season 3 episode of Nurse Jackie, I feel as though these people are not actually fans of the show. This season as a whole has been consistently the best in every way.
This episode was intense. I could see how some people might not understand, but if you have felt the pain of addiction, this episode should have real meaning.
The Eddie/Kevin story arc is suddenly becoming important again. The scene with Kevin and Eddie at the batting cages was filled with tension. It will be great to see how this plays out in the finale.
The new nurse (Kelly?) is also suddenly very relevant and interesting - possibly acting as a new partner in crime.