I would bet this has been said before, but I am going to say it again. Cindy has no CHOICE but to believe Caylee is alive. I say this because the alternative is just too horrific for her.
If what has been said is true - Cindy and Casey had a major fight on the 15th of June, we dont know what was said or what Cindy may have threatened to do - such as get custody, cut off all funds for Casey, etc.
Her guilt that she may have been the catalyst for what Casey did afterwards - that alone would would make her mind refuse to accept what reality is showing her. And you know what? I am not sure that under the exact same circumstance, my mind wouldn't do the same thing. While I get angry with her comments against OCSO, Pity is the strongest emotion I have when it comes to Cindy.
Everything Cindy has said, everything she has done is because the alternative is just too unbearable to comprehend - My opinion only, of course.