OP, I hope you keep reading back your last post to yourself. Have you read the 'Listen Up' thread which is stickied at the top of the Relationships Board? I highly recommend it. It is a great reality check on what everyone is entitled to expect in a partnership as basic basic minimum, such as respect, love, kindness.
Is your DH showing you these? Not much from the examples you've given.
I'm half thinking he has a serious eating disorder that he is projecting into you, but that would imply he can seek help and fix it, and give you some hope of change. He may well need some medical help for his issues, but from the other examples you've given of his behaviour towards you (which is pretty disgusting), the problem is way bigger than that, and you need to focus on your happiness. He treats you with contempt, and in front of your DC. Is this the life you want for yourself and them?
I know people are often quick to say LTB here, but it's usually because they have got sensible shit-tolerance levels and enough self esteem to enforce them, and/or that they've been exactly where you are now and want to help you free yourself from an intolerable situation and seek happiness.
I remember fondly how a few years ago posters like @AnotherEmma helped me see what was right before my eyes, and that I needed enough self worth to reject that treatment.
Google The Freedom Programme. It's very helpful in identifying behaviours that are typed to different abuse personalities.
And please please stop blaming yourself. He has conditioned you to do this, so much that you've changed yourself for him.
You also don't need to stay in a marriage where you are unhappy. And you don't need to justify ending it. Don't invest in the sunk costs fallacy either. You may have been together a long time, but what about the rest of your life? Its stretching out ahead of you, and it's up to you what you do with it.