If you lived it and watched your sister live it, break the cycle and don’t watch your daughter live it. No, I don’t know how to do that because I’m not a qualified therapist or mental health professional in any way. No, that isn’t a lecture, but an observation. Kml is right, such a dangerous situation and a very slippery slope.
Me 52, H53 Bomb drop 9/29/2014 Divorce from XH final 12/17/2014 Marriage #2 12/31/2019 5 adult (step)daughters (3 from XH's first marriage, 2 from current H's previous relationships) 6 grandkids