When children grow up witnessing a dysfunctional relationship in their parents, it affects them the rest of their lives.

It sounds like you felt sad and want to be a healer and seeing dysfunction leading to hurt upsets you. Looks like your sister became more narcissistic and controlling and takes her frustrations out on others, hurting them and bringing them down.

I am sure you would like to heal her, however there are people that won’t navigate their life or relationships any other way.it IS sad.