Hi detox well done for staying on the computer (you changed the script cus presumably you would have usually just switched off) and for telling your H how his behaviour makes you feel. Don't think posters should be asking "did you really tell him or just mumble" etc. It was a big deal for you to say something critical to him and you did it in your own way, no doubt after getting support from the thread.
Belleb talks about it being your fault for putting up with it and is afraid you willleave the marriage - it doesn't sound like you will to me.
One of the most interesting things you said is that you were always afraid of your parent's arguments as a child. We all take withus into our adult lifes the experiences of childhood, especially in relation to scarey or confusing things. In our adult lifes we re-enact our childhood worries and anxieties. So the chances are you would be worrying about your H even if he was not controlling, but he is, so it makes it even worse.
What about his childhood - what has been dragged from his c.hood experiences into his adult life. I would guess he had a controlling parent (usually a father) and was maybe overly criticised, and this has left him with low self esteem. This is also true for you but we all react differently and there is usually a distinct difference between men and women. You have "chosen" (not consciously of course) to be submissive and your H has "chosen" to be controlling because he maybe felt that his views were never acknowledged or he was never "heard" as a child - in short he was a nobody. I'mguessing here, but it will be something like that otherwise he would not be acting the way he is. I think he probably doesn't actually realise how controlling he is and how unhappy you are.
So in a way you are a lethal combination! You really need some good therapy to unravel what happened in your c.hoods and how it has made you the people you are today. Behaviour is always a product of experience.
Your H will scoff probably at the notion of therapy because deep deep down he is scared, emotionally immature and has to act like he does to prove himself (again not consciously) BUT I honestly think this is the only way forward.
Do you know about his c.hood - can you talk about it with him, and about yours, and see where you get and in the fullness of time he may agree to therapy. Carry on changing the script in small ways and note his behaviour - it will be interesting. Last night he decided to keep coming down but sounds like he gave up in the end. Keep it up - it may be the start of the change.