I’ve sat in a very similar situation only our couples therapist got fed up with my narcissist ex acting as if that was all such a boring waste of his time that she stopped mid sentence to ask him, “what are you even you? Your wife is the one doing all the work!”
That was a lightbulb moment for me but, tragically, I stuck around for another 5 years or so believing the lies culturally fed me since birth that an intact family was better for my kids than a broken one. This lie had only been reinforced by my first divorce and witnessing how hard it was one my kids.
Please do not do anything different or out of the ordinary until you are 110% prepared to leave! Read up on ways to protect your money and your kids, your home and your sanity.