RE: I think she is experiencing burn-out.
*****
Two thoughts:
1) she has been miffed by not being asked to be a White House speechwriter, after she took a leave of absence from the NYT to work on his campaign, and
2) she is tired of defending her support of him in (1) to her beltway/Manhattan/Hamptons friends. Maybe she got dropped from the list of desired parties, etc.
Also, she was hired by MSNBC as a commentator, so she spent entirely too much time with Chris Matthews, Joe Scarborough, and other Bush bashers.