OK, these are a little more twisted and detailed...
33) When Clark wakes up with amnesia in ASU, it's Cat that picks him up from Henderson instead of Lois. Cat takes him back to her place and by the time they realize that Nightfall wasn't destroyed, Earth is. So, everyone dies except Superman. He slowly dies from lack of sunlight due to nuclear winter.
34) Lois doesn't return from alt-dimension right away. Clark discovers where she is, finds the time-machine that he built and abandoned in 1966 Smallville -- when they went back and rescued baby himself from Tempus -- retrofits it for dimensional travel. By the time he finds Lois, she has hooked up with Alt-Clark, thinking that she was stuck in alt-dimension for good. Clark takes the time-machine, goes back to 1993, saves alt-Lois from "death" so that she returns to Daily Planet instead of disappearing, thus knocking out the reason for Tempus to bring canon Lois over to alt-dimension in the first place. Clark returns to his dimension, continues with his wedding to Lois, and sleeps with the clone out of jealousy (well, Lois cheated on me with alt-Clark). Realizes his mistake and confesses all to Lois before heading off to NK with Zara. When he battles Lord Nor, Lois is annoyed at him for cheating on her (and who technically didn't cheat on him because she never went to alt-world), doesn't warn Superman about the K-gas, and he dies along with Lord Nor and his men.
35) Lois saves the bullet she had dug out of his shoulder in "ME", instead of getting rid of it on her cruise. She keeps it in a lead box with a gun. When Clark tells her that he's going off with Zara to NK, Lois shoots him out of jealousy.
