Friends is in a controlling and emotionally abusive marriage

[AngelicaSchuylerAndHerSisters]

My friend’s husband treats her appallingly. Every so often I see clarity from her - she says she wants to leave - then reverts back to blaming herself.
Examples of his behaviour include -
leaving her places with no way of getting home when he doesn’t like the way she looked at him, opening her mail and going through all her bank statements, getting angry if she goes to work, getting angry if she doesn’t give in to sex demands straight away, she can’t have male friends, accuses her of being a bad mum, shouts about the house being dirty and messy when it isn’t, and all this often results in him disappearing for several days. I’m sure he has cheated on her multiple times.
things came to a head last week and she was planning to leave - when she discovered loans had been taken out in her name - but today she says it’s all her fault again,
I feel completely lost, angry, worried, upset and don’t know where to go. He destroyed the credit rating of a previous partner in anger when she left him so I’m sure my friend has this and worse ahead of her. She is usually extremely smart, confident and together, but she is a shell
if herself now.
I realise there isn’t much I can do until she comes to the realisation herself, but any advice would be very welcome.

That's such a sad post. Seeing a friend's life trampled by a nasty bully like that is gut-wrenching. The best you can do is be a good friend and remind her how people should behave in a relationship.