There is no evidence to believe the post reflects upon his real emotions, and since the man is untrustworthy[0], the post cannot be taken as evidence about his emotional state.
[0]:Whether he is willfully or maliciously deceptive is irrelevant. Even if he has the best of intentions, his behavior is still untrustworthy.
I don't know, but based on the last line I err on the side of caution. People don't react well to world-wide humiliation. I agree that he is completely untrustworthy and can't be relied upon to give an accurate representation of his own mental well-being.