Can you not just call the police? They'll remove him and that's the problem of your saftey solved. Hell be told to stay away from you. It'll give you some time without him in the house whilst you get an income and if needs be, a new home sorted.
At least go talk to them. You don't have to give them much personal info, you can just query them on what procedure would be and what the course of action would be to keep you safe.
There are also shelters for women who are being abused, some take kiss. I know it's a wrench to leave a home but, at least you'd be somewhere safe whilst you earn enough to rent a place of your own (and can claim things like cms for extra money). Speak with women's aid and find out what's available in your local area.
In the mean time, be very clear 'we will not be having sex again'. If he asks until when, you say 'I will decide that. You do not own me and if you cross lines again I will go to the police'. Baracade any room you sleep in at night with a heavy bit ic furniture such as a dressing table.
Confide in any friends or family or grown up kids you have about what has been going on.
Work towards your escape.
Though tbh, it would be much simpler if you would just report him. He belongs in jail anyway. When your kids grow up and learn what's what (tbh they probably know already) they'll hug you and tell you you should have reported the monster. No adult child of an abusive upbringing is happy their mother stayed.