I have heard most of those same things and agree completely that it a protective mechanism. My latest experience has not been as bad as before, but it is still there. My opinion is that she tests both me and herself and needs time to reflect on her internal test to see where she is. My tests are simply pass/fail while hers are essay and take more time to grade. :-)

I am finally taking my own advice (well, i have gotten it from others here) and that is to keep zero expectations, a PMA and not to push when things seem to be going better.

That being said, I also like to see the positives and deep down I feel some very guarded optimism. I focus on the positives now when I used to focus on the negatives. I have seen proof (but not snooping) of her doubt so I am clinging to that and trying hard not to push her.