My exh used to stonewall me. Leave the house after arguments. Ignore me for weeks at a time. Say that he "didn't know what to say". I thought he was on the spectrum for a while, I thought he struggled to talk to me because he had a difficult childhood. I gave him space, I accommodated his "grumpiness." I got used to being ignored and belittled.
Hell, he even would get angry over a simple boardgame, too.
He was fine with the DC when they were little and pliable and obedient, but as they became surly teens he got mean.
When he started "not knowing what to say" with he DC I started realising... This isn't right. When he was perfectly pleasant and charming with everyone else apart from his own family... That didn't seem reasonable.
When his anger got bigger and louder and scarier when I started to refuse to accept his tantrums, especially when directed towards the DC....
When my teen DD told me, tears in her eyes, that she doesn't understand why her father thinks she's a stupid idiot...
Slowly, slowly, I realised that I was desperately unhappy.
I read threads like this, constantly. Trying to figure out - is it bad enough to leave? Why? How could I? Would it be worse to leave or stay? It felt impossible.
The drip-drip-drip of this kind of tortuous existence wore me down, but when he set his sights in the DC, when he played favourites and was just plain nasty, I started challenging him.
He didn't like it. He didn't like that I stood up to him. He tried to put me in my place by hitting me. I started my own Mumsnet thread then.
www.mumsnet.com/Talk/relationships/3575915-I-have-to-leave-him-dont-I
Over time I have learned to unravel the damage and I've managed to keep him at arm's length as much as possible. It's been difficult and upsetting, but I've done it, and life is a million times better now. I can't even begin to say how much better.