'Ironically he WAS until he got a new job last year. And then it changed quite drastically. I don't know if anyone else has been in these circumstances, but that one change (i.e. the job) seemed to change everything in him.'
Lou, that is EXACTLY what happened in our scenario too. He just changed. He was SO PLEASED with himself. Little did I know he was thinking, new job, new life.... if I can get away from the troll things will be just peachy. Hmmm. It has put 10 years on him. He looks haggard and old. Consequences. They are such a bitch when you don't think things through.
Lou, trust me this guy is in agony. He THOUGHT he was going to get a little exciting time to make him 'happy' (believe me OW is as much of an object as you are). And has all got SO complicated for him, he has spectacularly lost control. The clothes have fallen off and now everyone sees he is naked. He chose her because she still idealises him. None of this has anything to do with love.
There is a fabulous book that explains narcissists and how to be around them. It is called 'enough about you, what about me? and he says quite clearly, narcissists are not interested in you at all. You exist for their ends. They will NEVER change. So do not get into power struggles with them. Very important book to help you let go and not get sucked into interactions.
If you are on a campus, surely the news has gone round 1,000 times already? How can OW not know?