Because of how I tend to view the world I think he still has something he needs to do that only he can do, and along that vein in a similar situation I would assume I still had something I needed to do that for whatever reason maybe only I could do and that would have to keep me going as I'd be mentally in about a bazillion pieces after something like that DX

_{and if it turns out there is some kind of higher power and existence post-death they'd be getting a stern talking to}