This is an issue we've had for the entirety of our marriage, I'm pulling my hair out over what to do.
My dh and I make decisions together, he is not the best communicator but I try to be very clear and always clarify/question what he responds to me with in case I've misunderstood. Whenever we make a big decision together (buying a house, having a child etc) at the VERY LAST MINUTE he tries to turn it around, say I pushed him into it and he wants out. I recognise that this is because he cannot own his decisions.
Over the last few months we have been gearing up to moving abroad. We rented out our house, packed up all our stuff, I found a job in new country (he works remotely) we're currently in my mum's spare room due to fly on Monday. Lo and behold, today he has engineered a fight, the outcome being that he is pulling out of the move and refuses to consent to me going with the dc without him (which I threatened to do).
He has now taken the dc and gone to stay at his mum's.
I am at my wit's end. Crying in my mum's spare room because I feel like he's pulled the rug out from under me, yet again.