OP listen I went back again and again on trying to leave.
I even did leave (homeless, penniless etc.) and went back because I was sad, weak and lonely.
Do you know what though? I feel stronger now I am away from him. I feel the power coming back. And I am putting roots down all over again.
You might not be there yet it took me a while, but know that, like your mother before you and so many wonderful women I have the privilege to know now, there is a way out when you are ready.
That said, the longer you stay the harder it gets to go. At some point you will know enough is enough. When you recoil from his touch, when his hug no longer matters, when you are sick of the icy atmosphere and feeling alone even with someone, when you are ready and done you will find the strength. The universe or God or whatever you want to call it, will give you that last bit of strength to leave.
You will get there because they don't change, but no one will judge you for not being there yet.
It was a grieving process for me, I had to let go of so many things, physically, mentally etc.
But you have made the first step so well done for being brave, it takes some women days, weeks, months or even years from that first step. Slowly you will get there (or quickly) but you are stronger than you know.
Cowards do not ring women's aid, survivors do.