The truth was, rather, that Charles's failure to respond to her need
for affection and his lack of understanding for her predicament
(unlike his sympathetic reaction to her sister Sarah's anorexia) had
been evident far earlier than the summer of 1986. Basically, the
cause of Diana's affliction was not only post-natal depression after
the birth of William but her early realization that Charles did not
truly love her and that this marriage in which she had invested so
much hope could never approximate to her romantic dreams.
Charles's true love for Camilla Parker Bowles and his powerful
sexual attraction to her above all other women had made those
dreams inipossible. Charles had abandoned Diana, not she him.
From waht ive read,i dont think she would have done it had Charles been more loving to her.
I don't think she would have aged well without some touch-ups.
. . . wife number two just doesn't look like a princess should, but she has the breeding of one.