@Jibberdy oh hun, can I give you a keyboard {{hug}}
When I was 37 I was going for a run (one of the few activities i was allowed to do because it was free and I was just wearing slouchy PE gear, I thought to myself as I was running ''if I had a year to live, I'd leave him''. Then a little while later, I realised, I could leave anyway.
It was incredibly difficult though, the emotional manipulation he subjected me to (mind you, I handled it all wrong, I sought his blessing to leave, obviously he was never going to give me that).
You may be thinking ''but you were 37 not 50'' however, it took me YEARS to get free mentally because I was still arguing with him over the internet years after I'd left. I handled it so badly. I should have just left, and not looked for him to rubber stamp my decision. He'd groomed me to feel his emotions but not his.
If you do leave you can get support on mumsnet. So many people have been through it. It's hard, aint gonna lie, but for at least five years, every time I got in to the bed, I thought thank god he's not in it.
So you're 50, so what. Better to be 50 on your own pandering to your own whims than 50 and dominated by a man who saps the joy out of life. I've had a couple of relationships, nothing that lasted but I'm definitely ok with that, so don't stay with a bastard because you think you'll never meet anybody else. If you never meet anybody else, then you'll be free to be you!
I know I've had 15 years to build the ground beneath me but I am so glad I left.
I was so ground down by him that it did seem like a DIFFICULT DECISION which is crazy now, that I've healed a good bit. I was taught that I had no right to limits, boundaries, needs, so I had been 100% groomed to see leaving him through his eyes, not through my own. And he was outraged and he let me know it.
I should not have engaged. If you do leave, you can get support here.