Nope cus I loved your takes! I think the way you portrayed the women in the Black women and the way they were portrayed in the books is something. Yk we see Walburga as someone who hates Sirius and who Sirius hates. But Kreacher keeps saying he broke her heart; which I think did happen from Walburga's view and not from Sirius', similar to when Lyra and Narcissa fought. Sirius was rebellious and didn't behave the way his mother wanted, his mother who wanted obedient children who would heed her every wish. While I donât think physical abuse wasn't there, emotional abuse was def there like the case of Lyra and Narcissa. THE PARALLELS!!!!!!!(i scream as they drag me to the white padded room). The way Sirius spoke abt his family to Lyra is interesting, cus in OOTP when speaking to Harry, Harry mentions how come he never mentioned Bellatrix was his cousin and Sirius replies that it doesn't matter and he hates the whole lot of them, not a good thing said. While speaking abt Narcissa almost wistfully to Lyra, he surely makes it sound like "yes those days were beautiful and one can miss it but I never want to return back to those same people who I resent for treating me terribly". Im currently thinking abt the angst we can have if Sirius dies, cus, like, im a pro at self torturing since i love me some angst. and if he does, i will be manifesting that Lyra doesn't stay with those people and stays with the Tonkses
Just know you're not alone in that padded room, I'M RIGHT THERE WITH YOU!!! We can keep one another company, lol
I feel like Walburga definitely did have a broken heart, it's just that she's also a terrible person who didn't love her son for the person he was so that's hard for Sirius to believe. I see her as growing up being sold this story about getting married, having kids, serving the House of Black, living "proper", and then she lives that and things go wrong at every turn. If your sole purpose is to serve the family, and then you lose all of your family--yeah, I think even stone cold hearts might break. That doesn't erase the way she abused Sirius, though. And for this story, Walburga does primarily use physical abuse on Sirius until the tail end of their relationship, then she's so at the end of her rope with her son that there were a handful of times she did actually strike him. Her power over him was in her words, so that's the tool she uses the most against him. I have to think that a family that is so obsessed with itself to the point of INBREEDING has to be absolutely crazy when it comes to maintaining said family, which is why they keep churning out these people who act so much like one another, and thus why Walburga and Narcissa end up raising Sirius and Lyra in such similar ways.
In my head, Narcissa and Sirius had a similar-ish relationship in their youth to what Narcissa and Lyra have, only without Narcissa having any sort of real power of Sirius, which made it far less controlling. I see her as someone who enjoys the concept of being nurturing and taking care of her family, and thus enjoyed looking after her little cousins and babying them. But Once things get hard and the shine wears off, it's no longer fun for her, it becomes work. The history I have for these two in this fic is that Narcissa was very loving and sweet towards Sirius (and Regulus as well), up until the point Sirius starts acting out, and while she played mediator for a little while hoping to get things back to normal thinking it was just him being a bratty teen, once it was clear they stood on opposite sides of a war, she stopped seeing him as her little baby cousin and instead saw him as a threat to their family as well as the one she married into. So she tossed him away, thinking she had family enough to spare (Only for Regulus to die and Andy to marry a muggleborn and Bellatrix to get locked up). Had she thought she could get him back the way she wanted him, she would have.
And for Sirius, as big of a game as he talks, he still remembers a time when Narcissa cared and looked out for him, and while logically he knows that love was conditional and not worth fighting for, he still misses it for what he thought it was, especially as a child not receiving a lot of care from his own mother. It's like having a relative who you have all these good memories of as a child and then once you grow up you realize they're actually not very good people at all. The way they made you feel cared for in those memories don't change, you may still miss who you thought they were, but that doesn't mean you want to go back to it now knowing what you know.
He's able to say this to Lyra, because not only does he feel like his daughter needs this sort of vulnerability from him in this moment, but it's also easier to admit to knowing she's in a similar situation and isn't going to judge him for it. I imagine Sirius as the sort of guy who feels the need to "prove" to his friends he's nothing like his family and won't ever backslide, because "Hey, I don't even like any of those guys!" And Harry's basically a mini James to him, so he immediately defaults to that sort of response when they start talking about it, which he does believe a lot of what he says, he just feels the need to be callous about it. And it's easier for him mentally to believe the lie of not having any love in his heart for them, as you can't miss what you hate. (Lyra inherits her ability to gaslight herself from her daddy).
And side note, I just don't see Sirius as ever having a good relationship with Bellatrix, lol! I imagine she was a cruel kid who became an even crueler teen, who became an everloving monster as an adult. She ruthlessly murders her cousin in the books and goes singing down the halls about it. Some people are just plain evil people, and that's kinda how I see Bellatrix, haha!