Mrs McBoatface
You even gave yourself an embarrassed face after your last sentence which still makes me think you have a heck of a long way to go. You really think your own needs are not important at all do you?. You are the very definition of an abused woman.
Re your comments that I have separated:-
"Codependent-- probably, definitely. And it's probably why I can't leave him because the guilt is crushing, I struggle to see this as an abusive relationship where he needs to be discarded and cut off with no warning, along with all the years of shared lives, friends, etc, financial security all down the toilet. I thought I'd put all this behind me, had weeks and weeks of counselling not long ago, I specifically made it about me and not the relationship, and she encouraged me to practice what I think are coping strategies, boundaries in place. She talked about jumping from the frying pan into another frying pan which is what I'd be doing by leaving him. Which is why I'm looking to change my behaviour and instead of colluding with him, to do exactly what I want and stick to it".
I think you are co-dependent most definitely, not probably. Being mired in guilt is also commonplace and now you are going into the "sunken costs fallacy" common in relationships like you describe. What you forget here is that the damage has already been done.
People get bogged down by focusing on their sunk costs as you are now doing. There are two ways to understand this process, both involving avoidance. One is an avoidance of disappointment or loss when something doesn’t work out. When a relationship doesn’t succeed, especially after a long period, especially after many shared experiences and especially after developing a hope that the relationship would be a good one, it is a loss. It is a loss of what might have been and an acknowledgement that a part of one’s life has been devoted to this endeavor.
Another angle to evaluate is that focus on “sunk cost” creates a distraction from one’s inner truth. The sentence often goes like, “I’ve already invested to much, so I can’t notice my thoughts and feelings that are telling me to end or change this relationship.” This is a type of insidious defense against noticing yourself. You enter into a neglectful relationship with yourself which divorces you from your inner thoughts and the quiet feelings that might guide you in your life. In other words, thinking about what already has been may prevent you from deciding what you want your life to be.
Do you think he feels guilty, hell no. He acts like this too Boat because he can. You do facilitate this simply by being there.
You find it difficult to have boundaries mainly because you've never been encouraged to have any, particularly after you met this man. I also think you do need to see another counsellor and one who does not bang on about coping strategies or even worse giving you the notion of jumping from one frying pan into yet another frying pan. It makes me wonder whether she knows anything about abusive relationships at all. There are no coping strategies that work when it comes to an abusive man and you have tried coping for years.
"I'm just sure that my relationship with my mother set the template for this".
Yes it sure did
"She could, and still can, ruin a nice day in a moment, my sister and I were always aware of her moods and knew we had to be very careful around her. I think it suited her to consider me a bit damaged-- I met DH at a vulnerable time (parents were 'worried' about me, had no confidence in my ability to finish uni, DH helped me get my life together and become fairly successful)".
Your mother certainly did her bit to teach you a whole lot of damaging lessons about relationships and I am not at all surprised to see that you met this man at a low point in your life yourself. He targeted you really and used your own self against you to his own ends, he saw someone he could and has readily exploited.
"I really think I've done a better job with my kids-- at least we have a laugh about ourselves and they are both confident and doing great".
This is good but perhaps they also wonder why you and this man are still together at all.
Your H won't leave you readily as he is onto a good thing with you and such men do not let go of their victims (the plural is deliberate) easily. Why should he go to the effort of finding another woman to do his bidding when he already has one of those doing this already. He knows also that you won't leave readily, if at all, because of your own fears and guilt which he also instilled in you.