Hi, your h is very very angry, as you have noticed. He is focusing his anger on whatever is seeming to thwart him, and since he isn't thnking straight most of it is going towards you and your kids.
They say terrible things in their anger, things that never should be said, imo.
A wise poster several years back characterised MLCers as 'lazy, selfish and entitled' It is so true. They want ALL the money. It isn't about helping you out. In fact in our marriage I earned more over the years probably than my h [except that we didn't count but put it all together, as you do] as I set up a successful business. He still felt entitled to the lion's share of our assets.
Resented paying for the youngest to go to university [despite the fact we had supported the others through, and so on].
Now, 5+ years on, he is actually helping our youngest son through grad school [guilt, I think not remorse] but initially only on the condition that I didn't. We called him on this, and he backed down.
Money is all twisted up in their mind, they feel that their life should have been different, and if only they had been with someone else and not had the burden of children etc [insert whatever you like here that 'oppresed them'], it would have been different.
In the first place this is bs and in the second grown up people face up to their responsibilities, not ditch them and run. It is a flight from maturity to childish posturing, and threats and name calling. Sadly it is coming from the pen and mouth of someone who was once very different. It hurts until we see it for what it truly is.