Shame on you for not helping your family out. :/
It's dependant, she was somewhat estranged from us and had little contact with us for the most part of her relationship with him.
It was all a question of self -confidence with her and the fact that he manipulated her so badly mainly to believe that we didn't love her, or welcome her.
We only found the true extent after the fact, after which only revenge would have come into it.
Revenge and justice are not one in the same.
We offered her whatever she needed whenever she needed it, but even if the person was beating her, it's not like we can force people against their emotions and how they feel, some people are wired differently to other people and will follow patterns they are comfortable in and are afraid to lose that little bit they have even if it is not much.
To this day it hasn't affected my judgement with regards to men hitting women, yes domestic violence is wrong, but lets not pretend that women are only ever the victims.