Thanks garlic, I too have been summising that in the end it's how it feels now and the whys and wherefores are part of a process of understanding but if there is damage going on you have to recognise that it's there and stop tolerating it.
Fortunately I have never tolerated his behaviour, but it's driven me to tears, confusion and fury - my dcs also see where it's wrong.
He probably is AS but that his mother hasn't been able to handle it as a child and being the hard as nails 20-a-day, brought up by gran, single but always working hard, bad luck with men, mother that she is, it's all gone a bit wrong for my dp.
I'm not qualified to go into the whys and wherefores of autism and aspergers other than to assume that it's definitely not black and white, and I'm glad the observations that the misunderstanding of autism in children can cause huge problems with children because it is fundamentally a social disorder.
And that explains why I, like submarine and peppa, have been wavering between here and the emotional abuse threads. But this is the first AS thread I've been on and it has been extremely helpful (so thanks everyone!) to explain stuff.
Submarinegirl - I think your dp being the only boy in generations of women is almost guaranteed to encourage narc. behaviours, also a lot of pressure to be the man and represent manhood for the whole bloodline. On the other hand I was the only girl among many boys, and rather than turn into the spoilt princess I assimilated and played their tough games. However it only left its mark in a positive way - I can tackle things many women won't for instance.
Sub is it that you can't accept that yours is doing this deliberately? He probably isn't - his behaviour is rough and unforgivable but if he was interested in change it might be bearable. As it is, change is met with hostility and therefore you know where you stand - it's just not going to happen.
But one more question before you pack your bags - do you get on with his family? As partner of the 'golden boy' you must be under intense scrutiny and he may well be under pressure to bring home the golden girl and he may well be trying to pummel you into being one. His hostility might actually be their hostility enacted by him.
Whatever the reasons behind his despicable behaviour though, your dcs as always, come first. It won't do them any harm to give yourself and them some breathing space, take the toxicity out of the family for a while and see what happens.
Your dcs are 10 and 6, a very good age to move home if that's what needs to happen. When secondary school comes you will be more pressurised to stay where you are. You mentioned the youngest has anxiety issues - don't medicalise this, see it for what (I think) it is. Dad goes into anger meltdowns - he witnesses this, it's disturbing, he becomes anxious. Dad doesn't deserve to share your home if this is what he does.