ok, so here is the idea.

what if puss HAD gone to Sanata Caloma and Kitty was there, and they got married. Then the chapel get attacked (by this point puss only has one life) and Puss gets killed and stays dead. Kitty is hart broken, she gets depressed and rentiers (where she meets Perito) Until she hears about the wishing star and wants to use it to bring Puss back. Death hears about this and wants to stop her from reviving him. Kitty does not care what Death wants. (Death will only leave her alone once she comes to terms and accept Puss's death) in the crystal cave seen instead of Puss's past lives talking to him it will be Puss talking to Kitty and essentially making Kitty realize how much she misses Puss. in the end though Puss does not get revived, but the wish is not destroyed either. instead, kitty keep the wish with her, she also comes to terms with Puss's death. :D