I'm going to overspeak here probably and I apologize if it's too much. I am in an emotional state with my own situations and words are my only way besides meditation and being in nature for connecting. I do not mean to offend in any way, I'm just sharing and trying to be supportive....
It's a hand me down issue from generation to generation. From my grandmother, who I heard was the extreme of inaccessible, who I never knew and died when my mother was 18, then my mother so filled with inaccessibility and unhappiness that she even had a premature child at 30 that she didn't know what to do with or how to treat. Maybe it was a gift I could not have children...but it transmuted for me into a deep desire and mission to deliver them as a midwife and L&D nurse for a number of years while being a nurse..I believe it was a part of my healing as the years went by possibly.
I'm sad you say you "have to take the brunt of".....because I can hear the deep love and desire you have for this child you brought into the world.
I would like to share that if my mother had ever said to me anytime over the years that she was sorry for how she had been with me it would lighten and relieve my heart in so many ways. I know she mostly didn't understand or didn't want to. The only indication I ever had from her was somewhere in my late 30's she actually made a one line statement in the kitchen of her house saying that she knew she hadn't been the best mother. That was remarkable with the wounds she carried around. I almost fell over when she said it. It was not an opening by her for conversation though unfortunately for us or I would have sat down with her and shared and listened.
I embrace the idea that you might consider the idea of apologizing directly. But that is only little me and my thoughts around this situation. However it goes....I so support you in whatever you choose to do and also whatever feelings you have at anytime with whatever you are sharing about here or hold within yourself.
I hope that you get with her a reconnection if it is to be so. And some inner calmness while the time passes in the present.
I know you may not have asked for remarks to your share so thank you for letting me respond to what you wrote.
And I am glad you have such a dear and close friend.
Janis