If this sort of behaviour was evident at the start then would you have jumped in? Probably not.... And in my opinion he is acting awfully. Please, please believe that you are worth more. All of this must be exhausting for you.
You sound beaten down and I imagine you are spending energy worrying when maybe e isn't?
Are you sure that he is aware exactly how dreadful things have become? Maybe you could start building yourself up- do more to make yourself feel good and build some foundations to support you so that if you decide to leave, you already have started an 'escape' plan! Things can feel daunting if tackled all in one go . Take some time out to work out exactly what you will put ho with and what you won't- perhaps focus on what you DO want in fact and head for that.
I understand your need to 'name' this as you are questioning yourself amd want to know if his behaviour is within acceptable realms. If it isn't to you - then no it isnt!
This horrible behaviour of your husband has contributed if not been totally responsible for your confidence crash.
I have Just left a marriage three months ago- most difficult decision of my life. I have two young children, I'm paying off a Bancrupcy order, I rent a rather run down old farmhouse, work in a school for minimum wage and my nearest blood family lives 90 miles away with the majority in a completely different county..... But I now wake up and feel free to make my own decisions and hopefully one by one, I'll start ticking my list off ( be it taking over all of the bills- of which I have only one more to clear before everything is in my name) and my next big mountain is to re train. I am worth more than £8.21 an hour, I'm bright, I'm honest, I'm hard working and resilient. Is taken only a few weeks to start finding evidence to support this. I am not a confident person but I can be bold enough when empassioned! You have one life. Xx