No Dad didn't do much to protect me. He'd been silenced by then I think (am youngest). It's complicated - one of my older brothers was a handful, so Mum used to get Dad to beat him with a belt when he got home from work, even though whatever my brother had done had nothing to do with Dad. I think he felt that was the right thing to do, although apparently he was in tears doing it as Mum would encourage him to belt the boy (he was age 10 - 13 at the time). Dad came from an abusive family - his Dad used to be violent and cold.
Brother then ran away for best part of ten years, which tore Dad apart and I think it took him years to deal with it. It also upset Mum too - naturally.
In my teens I didn't like Dad (too strict) and used to bitch about him with Mum - which now I regret, because although he is and was too strict, he is very loving, generous and kind and has been super patient with Mum which I think shows his moral character. I guess I can't handle the fact that he should have stood up to her, I need to think he didn't get that wrong.
I only really saw Mum at her worst last weekend, when my world turned upside down and I realised that everything I had suspected but dared not believe was true. And this is reshaping everything that I thought to be true, and explaining a lot about my low self esteem and useless twat radar, amongst other things. And I thought Mum loved me but she doesn't act like it, unless I don't challenge her, and give her attention. Which hurts.
Until about 2 years ago my fantasy of a relationship was basically having an argument (in my parents' mother tongue). I didn't even realise that this was wrong - so I'm still relearning what love actually is. I thought Mum loved me and Dad didn't - I now realise that it is the other way around, so I'm headfucked at the moment.
And Dad, at 80 and very religious, is now agreeing he wants to leave her, which is an epic validation of the feelings that I have about her and my past.