Vanilla
she would have a meltdown and shout "I've sacrificed twenty years of my life for you" an she made sure that we never forgot that
That sounds familiar! We used to get similar. My dad got it too during rows. She also told us from a very young age (I was 10 and the eldest) that she wanted out of her marriage and was staying and putting up with stuff for our sakes and as soon as the youngest was 16, that was it. She kept her word too. So our childhood was sort of waiting for Mum's wish of getting out of her marriage to come true, with us being the barriers to that.
She used to write a list of all the terrible things that my step-father had done to annoy her and then once a year - always on the night before her birthday - she would read out the list to her husband and then they'd have a terrible row and her birthday would be ruined. Every year. Without fail
Sick! Wow
Sorry, I keep bringing up Seinfeld as I'm a HUGE fan and there seems to be so many examples which fit threads here. Reminds me of Festivus, a festival which George's verrrry dysfunctional father made up to replace Christmas. Amongst other things, part of it is to list ways in which your family had disappointed you in the year just ended, called "The Airing of Grievances".