freefly, the situation you describe is horrible. You've been put in an awful situation. To be honest, you seem to have pretty much got it worked out correctly in your own mind, it doesn't seem fair or practical for you both to live as "housemates". The only other (and very bad) option is to marry him, but as you say he has been deceitful, and why would you marry a deceitful person?
As for his reaction to the events of Sept. 9 2001, that really rang a bell in my head. My mum became a JW in the early 80s, my father wasn't interested (sensible chap) so I was brought up (on and off) going to enough meetings for the JW bull$hit to get under my skin. I was never baptised, and by the time Sept.2001 came round, I had not had anything to do with the JWs for almost 10 years. However, when those planes hit the towers, my FIRST thought was that this was armageddon, and that the JWs had been right all along. Their mojo is mighty powerful. Luckily for me, I ended up here discovering the truth about "the truth", rather than back in a Kingdom Hall.
He has made this bed for himself, so he must lie in it, I feel. Any chance you can kick him out? (forgive me for being blunt). Maybe he can go and live with his mother, so she can cook and wash for him, as well as think for him. I wish I had better advice for you.
ig.