Mental illness would not explain her behavior. There is no reason to jump to that conclusion.
BBM
Her behavior is one I have seen.
When you volunteer for this arena you see a lot.
She has no full range of emotions.
She can disconnect from emotions - such as dance and smile and look happy when Caylee was gone.
Chronic lies, chronic bed hopping, and more….
I am glad you dont know about Mental Illness - it is no fun.