I understand SO well. It's not even about an apology is it!
It's more like two realities and theirs always pushes yours underground.
At some point my Dad will get in touch with me to tell me how hurtful I'm being to my mother! My mother is the ONLY person in our family who can get hurt! Even though they refused to believe me when a family member was singling me out for abusive behavior (not sexual abuse thankfully).
Years and years and years and years later, my brother actually acknowledged that I was right (I always knew I was right) and that prompted me to try and MAKE my mum admit that I had not been dramatic and sensitive and paranoid. She has thrown herself up on the cross and she is so hurt now.
Something you said struck a chord, another parallel with my own experience. My parents have been generous to me and I am so grateful and I have told them how grateful I am repeatedly. When I left my x they helped me buy a house. So the DC and I have security. I am so grateful for that.
But what I've managed to disentangle out from their expectations of me is that gratitude must be expressed not through gratitude but through obedience.
The last time my mum wasn't speaking to me and my dad turned up on the front door to tell me off for being hurtful and ungrateful etc, I screamed at him that he was the one confusing obedience and gratitude.
It didn't resolve matters, it just slips back in to fake nice again after a while.
You're lucky you have a husband WHO GETS IT in your corner.
That's what my inner child needs right now. Don't laugh. My inner child needs somebody who says I believe you, I hear you, I see you. Your reality is the one I accept.
I never had that and for decades I"ve had my parents telling me I'm ungrateful.
When your husband tells you he believes you, close your eyes and picture yourself as a child in their house, small, silent, and let your inner child hear his words, xx