Oh OP you sound absolutely broken. Your generosity is obvious in your comments as is the fact that you have been manipulated into living a small life that doesn’t impact your husband.
You have had lots of great advice and I can imagine that this has been very difficult reading, but please start doing some reading into coercive control and financial abuse because you need to take your life back and you won’t be able to do that without realising where you are.
Abuse doesn’t care how much someone earns or how many holidays they have or if they have what would be termed a “nice life”. You don’t have to be physically beaten to be in an abusive relationship. It also don’t matter what other people might feel like in your situation, it matters how you feel. Do you feel loved, respected, cared for? That should be the minimum in a relationship.
It’s fine that you think that he’s want his money, but what’s not on is that you both agreed for you to be unable to earn money by being a SAHP and then for him to refuse to provide for you. Marriage is a contract to share with your spouse. He doesn’t get to curtail your earning ability then not provide. Men have to realise that if they want their wives to do all the housework and childcare etc then they need to step up to fill the void left by only having one person available to work. If he doesn’t want to provide you with enough money to live on then he needs to take on 50% of the SAHP work to enable you to go out and earn more. If he won’t/can’t do that then he’s back to having to provide for you (which, if he was a good human, he should want to do).
From what you’ve worn, this is all about control for him. He chooses your house, your holidays, his job, what he spends his money on, what he does with his spare time. He doesn’t even need to make tedious phone calls because he gets you, his PA/nanny/housekeeper to do it for him. How incompetent is someone that they can’t possibly book a haircut? What does he do at work? Does he have any responsibility? If he can manage there, he can book an appointment. His bank card is another chance for him to control your life. He could easily get another account to spend from. You could have your own account with a card that he doesn’t need to worry about over spending on. He could give you a credit card. He could get a credit card. So many options that he chooses not to do because he enjoys being able to cancel his card as it controls you and keeps you small.
You mentioned that many people don’t even have £350 a month to live on. They tend not to have husbands (not partners, husbands) who have an annual income of nearly £200k (his salary, bonus and share dividend of £40k ID I’ve read that correctly). This is a man who will see his children go hungry and leave his wife worrying about where to find money for new shoes for his child. He is morally repugnant.
You would be financially so much better off if you were to divorce. You mentioned that you wouldn’t want the children to spend much time with him as he never does it so you’d worry about them. Think about that. You are worried about them being left in their own fathers’ care because he would be so rubbish at it. How h does he actually interact with them? If they have a distant dad who pleases himself, treats their m with contempt and refused to spend money on then they will probably grow up feeling inadequate with little self confidence and will always feel like they’re not good enough. They will always have a feeling of not being good enough because it must be them right? There’s something wrong with them because dad doesn’t want to spend time with them or won’t get them something when he’ll quite happily spend £££ on himself. They can’t earn anything either, so I guess they will have to live on the poverty line too while he adds to his £200k income. I bet you and the DC have very little impact on him and he’s basically living how he wants and will roll out his perfect family when he needs it.
You do not need to live like this. Your children do not need to live like this. Keep posting and reading the replies. There are as many ways of arranging finances as there are relationships and not all of them are abusive. This one is abusive. By all means talk to him about things if you think it will help. If you don’t want to because it’s easier not to endure the questioning or sulking etc then be aware that he is controlling your behaviour. He has taught you not to resist so you don’t have to take the consequences. He is coercing you into submission and that is illegal. The sort of behaviour he is exhibiting has been made illegal. Enough people in power had enough evidence to draft legislation to recognise, prohibit and sanction what he is doing. Take some time to process things. If you do decide to leave then there will be lots of advice on the Relationship boards on how to do it (don’t let him know what you’re planning until you’re ready. Play your cards close to your chest). Good luck OP and I wish you strength, peace and clarity x