If I really think about it I think it’s because I feel liIs she wouldn’t cope with it and would be more devastated than me about it. So maybe that’s something I’ve been brought up with. Again, a big job for my therapist !!!
This is quite the insight. It shows two things - firstly you have normalised putting someone else's feelings before your own, and secondly a significant figure in your life is someone who will make themselves a central figure in your problem, making it more about comforting her for upsetting her about something she could be comforting you about.
Can you see the parallels.
I'm certainly not saying your mother is abusive, but you are describing behaviour patterns which you are accepting as a normal, which are not. I think it is also interesting that you are able to recognise that in her, so you do have clarity coming that its not right.
I have no idea what he would have said if they’d needed Medical attention but yes I doubt he’d have been honest about it. He threw it well away from us, it wasn’t at anyone it was more like ‘if you won’t stop fighting over this I’m stopping it for you’ - throw - smash.
This is not someone losing control in anger. This is someone angry that people are not doing what he wants and making a deliberate decision to act in a way to frighten them so that they submit back under his control through fear. And as others have said, you only need to do that a few times, as a reminder, to keep control, because the threat or fear that he might do it again ensures they behave.
It has parallels with the sexual abuse. He has 'punished you' recently for trying to exert your boundaries, and coerced consent from you, because you know that if you say no, he will do it anyway, and you really dont want to have to face that in reality, so you put it off for another day. He is relying on you to keeping saying yes, because he knows that you are scared to push it. He is really taking a risk though, but as he has already admitted that he is turned on by you being upset and crying, and risk taking is part of the thrill with personality disorders, it likely excites him too