At 10:49 AM 6/5/98 -0600, David Johnston wrote:

Sit down and explain what to Kodachi?  The odds are pretty low that 
Kodachi, being intelligent, would believe that Ranma was really a girl.
It's not likely she'd be any more repelled by the curse than Shampoo or 
Ukyo.  Kodachi already knows that Ranma doesn't love her, after all.  
She just thinks that with enough effort, she can either change that, or
at least punish him for his lack of taste.  I can't think of anything 
you could "explain" to Kodachi that would make her any less troublesome.

I dunno. Kodachi always struck me as not being so much delusional as not
giving a damn. It's just that telling her that Ranma and Ranma-chan are the
same would probably prevent her usual violent actions toward his female
side. (Especially if you made sure to accent the fact that he really is a boy)