Why stay with someone who persists in behaving as an insane lying kook? Either he's mentally ill and gets help, or he's a rotten person and you leave. It looks like the latter.

Sorry if this is harsh, but what you describe is over-the-top. Seriously, it sounds right out of an unbelievable comedy film. No way to live like this!

Trust and communication are foundations of a relationship, in my book.