I've been a little haunted by Sean's story today, his journey (ugh) is one of the saddest, most disturbing things I've ever seen on television. As loathsome as I found him at times, I couldn't really bring myself to fully hate him.
Sean was a victim of abuse at the hands of his mother. I know he loved her, but to me, Renee was pure evil. I blame his death fully on her. I think back to his first episode when he said the reason he ended up bedbound was because of two torn ligaments. That isn't anyway shape or form an injury that should render someone bedound for life, his mother took that as her opportunity to ensure he never left her. But I think she was grooming him for that before. I don't believe his father was abusive, I think he tried to prevent Sean from turning into what he eventually did and Mother dearest just couldn't have that, I think that was the beginning of making sure Sean always believed that only she what was best for him.
There was nothing Dr. Now or Dr. Paradise could do for Sean. Sean needed intensive, long term, in patient psychological care. Sean should probably be thankful Renee died in a hospital, that woman was twisted enough to pull a murder/suicide if someone told her she was terminal. She didn't want Sean to live without her and in the end, she got her wish.