Well as I said yesterday in my post Kurt's personal life was a mess excepting Frances , which I think is the main reason why Kurt didn't commit suicide.
We have to remember that Kurt didn't have a childhood and I as a sensible soul he was and is I think he couldn't do the same thing to his child.
I personally think that Kurt decided to stage his death long time before the day he "committed suicide". I also think that he wasn't alone in this plan, and Courtney was beside him all the way. Not for free of course but she had to help Kurt realizing his plan. She only got in return fame and money , just enough for her.
One episode that I can remember is the Rome incident where Courtney was shouting loud that Kurt was suicidal and that was a suicide attempt ... False
Another lie by Courtney was that in his last days Kurt was suicidal and chaotic ... False ... If you look at "The last 48 hours of Kurt Cobain" there was a girl named Katia , who meet Kurt one day before his "death" and she describe Kurt as being happy. Another thing Katia said was that she remarked the joy and the light of Kurt's eyes ... So that was the state of Kurt one day before "suicide".
I would say this is the state for a man who is sure he soon will get a new and better life.
As for Courtney she only followed Kurt's plan , to create a diversion so that everybody would think Kurt committed suicide.