GET OUT NOW. This man sounds delusional and paranoid to say the least, possibly manic or psychotic with possibly violent tendencies or thoughts. If he was willing to get treatment, that would help him a lot, but if he's not willing, you need to RUN for your own safety. Even if he DID get treatment, he may get this way again. If you're not already fully committed to the relationship, now's a good time to get out. RUN, don't walk.