Help - this has now gone too far!

Hi
I have posted here previously about my partner who has DD. He has become very controlling and is blaming me for absolutely everything. To hear him talk I am the worst person in the world. I lie, I cheat, I steal, I collude with people to conspire against him, he comments that everything is a coincidence and can relate anything and everything to random things that happen. The more I defend myself, the more I am guilty in his eyes. I really can’t do or say anything right at all. The worst thing for me is the constant accusations of cheating with a completely random person. He is extremely nasty and derogatory and is doing things to me that amount to sexual assault. When I tell him to stop and point out how disgusting it is he just says that I deserve it.
I just don’t know what to do any more. He keeps threatening to meet someone else as he says he can’t trust me. I think I should just let him go and stop trying to fix him - perhaps I would do him a favour, if he starts a new relationship then perhaps he will stop and will get better.
I am at my wits end and this is now seriously affecting my own mental health. The jealous delusions are more prevalent than the persecutory ones at the present time.

You should take your own advice and leave him.

Get out now. From what you've said, it sounds like he's abusing you in more ways than one.

Having DD does not justify or excuse abusive behavior. It's true that DD makes its sufferers obsessed with fixed false beliefs. But it doesn't make people violent. He still has control over his behavior. And he has chosen to assault you.

You need to leave. The sooner the better, since abuse can escalate over time.