This episode reinforces my general impression that Dr. N is pretty much a saint. No, I don't always agree with him, and I think he can be too dismissive of pain, but... he threw everything plus the kitchen sink at Sean. Every tool in the toolbox. He never gave up on him, he never abandoned him. He, of all people, seemed to understand that Sean was utterly alone.
And yet in the end, some people can't be helped. We suffered a loss this year, a childhood friend; an attorney from a good family - a nice, genuinely good person, who couldn't get past his demons and kick the drugs, despite having had every resource, multiple in-patient rehabs, and every chance in the world. It wasn't enough. He died with a needle in his hand. And he had so much more than Sean.
I hope Sean's spirit is at peace. He's in a better place now. He has to be, because he was living in hell.