An interesting time with your friend, OP.
I have been surprised, through later adult years, just how many of those who have become good friends have turned out to also have had difficult upbringings.
Do 'birds of a feather flock together'? Do we emit invisible vibes?
In those days, emotional abuse wasn't even on the radar. Schools did not react to what would now be considered blatant signs.
My mother was not stable. She married a man who was abusive.
I married at 18, to a highly controlling man. ....because he seemed to actually like me.
I finally ended contact with my mother in my late thirties. It was the best thing I ever did, and probably saved my sanity.
Of childhood friends, three would have their own pains to tell. All escaped early, and all of us have battled self esteem issues through our entire lives.
What interests me is why some people are able to break the pattern, and transform their own parenting, whilst others seem destined to repeat the cycle.
What makes some people determined not to inflict damage, and others incapable of change?