@marigolds113
His lack of communication/sharing has pushed me over the impatient edge & I have said some awful things in ‘fight or flight’ mode. So he’s seen/heard the worst in me. But for balance, I think I’m seeing the worst in him as he refuses to clarify/communicate and seems quite cold.
He's very much ahead of you in this isn't he, and you are playing catch-up. Also it sounds as though he's compartmentalised you and is making decisions which affects you, for his own advantage, without open communication - apart from those couples counselling sessions which you don't seem to have much faith in, whilst for you he is very much, at least emotionally, part of your overall life.
In your situation I would do some personal (and discrete) legwork to see what your financial situation would be if YOU decide to divorce. Eg: what is your own financial situation regarding savings, investment, pension, working capital, equity in the house? Do you have that same information for him? Take that information and consult a family law solicitor (check out "Find a solicitor" on the website of the Solicitors Regulatory Authority/SRA.
You may decide, once "getting your ducks in a row" that this isn't the direction you wish to pursue, or you may reconcile. Knowledge, however, is power, and it's to your advantage to know exactly how you stand whatever your final position is.
Strength to you OP. 🌹