The sad truth is that nothing can be done until she makes up her mind if she should stay and suffer or leave the relationship for good. Some people are used to taking abuses and there is nothing one can do about it. Or maybe she is looking for the security a relationship can offer or have self esteem issues.
Whatever the case may be she needs to open her eyes and decide what is best for her.
The sad truth is nothing until she is ready to leave. I have an article that I wrote on this subject. I invite you to visit my page, and read my article on Domestic Violence.
You should give her a company without giving importance to the relationship till she is settles in mind. Time is a factor that makes a person to mentally fit to reassess the past happenings only then you can share with her to rebuild the earlier relation.
Clearly, your friend is not ready to (or is afraid to end this destructive relationship) so she will not do so until she has had enough (hopefully before it is too late). Unfortunately, all you can do is to continue to lovingly encourage her to do what she knows in her heart is the right thing to do, and provide her with informative articles and resources that she can read on her own that might give her the strength to do what is in her own best interest. Refer her to my powerful article on the subject.It just may be just the thing that might get her attention enough to seriously consider making a necessary change.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.