There was another thread about this same kind of thing, just a couple of days ago. So sick how common it is. You know what, sometimes I think these pervs are just pushing to see what they can get away with. I wonder, if you told him to back off or else, (and yea, why not threaten to tell his wife) if he would leave you alone. It could happen.
What is the organizational structure of this school? Everyone has a boss, is he really the head honcho, or does he answer to someone that you could report this to, or threaten to report this to?