Just watched it. Somehow, I just find it so sad to hear that after playing a role all his life and living a charmed life through this character, he came to a point where he didn't know who he was...
It reminds me of the Shakespearean lines Polonius offers in Hamlet:
This above all: to thine own self be true,
And it must follow, as the night the day,
Thou canst not then be false to any man.
Maybe it's not 100% appropriate but living a lie or putting on a front eventually catches up with you. Like you, Francois, I felt desperately sorry for him but his work stands as testimony to his glorious ability and, faux eccentric or not, nobody can take that away from him.