I was unaware that you are so unfamiliar with commonly-used terms descriptive of a person's overreaching ideas about the emotional state of another.  "Armchair psychoanalysis" is a term frequently used to describe what you were doing when you stated "My wife's theory is that he's one of those people not comfortable with himself, and always constructing or defending an image of himself vs. serving others.
Whether his behavior was due to nervousness, over-compensation, orders from Hillary's staffers, lack of gravitas/steadiness, it does not bode well for the ticket and the country."  Are you pulling a Trumpism on us and denying that you were speculating on Sen. Kaine's inner adjustment?  So then, you add to your own injury by trying to turn the tables on psychologists as being the problem.  All that it shows is that it may be, perhaps, something a psychologist could help you with?  You even keep doing it in this recent comment.