I think you should spoiler that whole thing, like the above quote.Gamer @ Heart said:And she killed herself because she was tired of the nanomachines. She was suppose to be dead. She new that, but she had to stay alive to finish her mission and destroy the patriots, and with sunny completing the virus, ("I cooked them right") she new it was time to go. She had to die, just like Big Boss knew he had to aswell. All remenants of the old patriots must go.
Anyway, I guess being tired of the nanomachines explains it. She didn't have an obligation to die, since he wasn't part of the Patriots like the other characters who died were. She could've hitched up with Otacon and make the most of life instead, then we wouldn't need to hear Otacon's whining
NAAAOOOOOOOMI! WHHHHHY?