I had a similar picture in my head, but one where he is an old man who's lived out his life and is content with all he's done, but curious as to exactly what made his family so odd, so Renesmee shows him the history- like when she was telling the Denali Clan about herself; though, like her parents, she tries to gloss over the worst,most terrifying parts of a story *cough*Volturi*cough*renesmeecarlie wrote:Maybe one day he will ask her...I have this whole vision of him marrying Sue and growing old with her and Bella telling him before he dies what she really is...but that's just speculation
And after Nessie explains everything, Bella offers to have somebody in the family change him if he's not ready to die. Charlie refuses, saying now is the right time for him to die; but that if his family is a bunch of vampires and 'werewolves', people need to redefine what monsters are.
I was imagining how Bella would deal with her human friends and family, especially Charlie, dieing, and my head just produced that.