In other words... she doesn't really care about him. Just herself. She became what she hated. The same as the sister which gaver her geass.Originally Posted by shinta|hikari
If I were to choose one of the zillion theories of why Lelouch is alive, it wouldn't be this one. It would be the Charles's dormant code. CC should have just handed her code to Mao then, if she only cared about herself. Sure, she can spend the following 40~50 years with Lelouch. Then he is cursed by eternity.
Would Lelouch give the code to someone else? Remember he wanted to end the curse of geass, so he killed the geass cult. Whatever code he could have gotten, he would never hand it down, unless he became broken, and became like the sister, no longer caring about others. A man who discarded his identity, life, family and friends to find peace? The code would be indeed a parasite... one that contaminates the mind.
EDIT:
I recall Marianne asking why CC was not dissapearing alongside her and Charles... I think its because CC stopped being selfish... thus she would not prioritize her own happiness as you say.