Hi Millennium, I really just want to offer you support. Your story reads very much like my own, the verbal and emotional abuse didn’t really start until after our first child but it dud escalate a few times to physical, even though he said he hadn’t punched me (he held his fist firm to my face).
I too am seeing my eldest copying his dad’s tone and lack of patience towards his younger brother and he can sometimes be disrespectful to me too so I know I have to get out for them. He won’t change, I’ve asked do often and he choices not too.
I won’t lie, if feels bad and I feel sick about the whole thing. What has helped me though is keeping a journal, whenever I have a wobble I read it and remember how he’s treated me and our kids badly. If you don’t have one Ivan really recommend it, you’ll probably see a pattern of behaviour.
Take care and good luck x