This is actually a question that reflects more about the person asking the question than the victim.
Regardless of if a victim chooses to stay or leave, they are the one who is going to bear the consequences of that decision for the rest of their lives. They will suffer if the resources they thought would be there don't pan out, they will suffer if another fight ends in physical altercation, and they will suffer if their lives are flipped upside down while they sort out each step.
The decision about what to do is going to change the victims life for the rest of the time they are alive.
Thinks about it, you as the 'helper' will suffer only a tiny fragment of the consequences, you will only experience discomfort with the situation for a very short period of time. The time that you spend 'helping' is limited by the time and energy you are willing to invest. If the situation ever costs you too much then you can choose to stop providing assistance and the discomfort will end soon afterwards.
In contrast, the victim can't leave their own lives. So in all honesty if this is a question being asked, it means that you have expectations of the victim that are not being met and the expectations you have are not the victims fault. Your role as a helper needs to be reconsidered carefully. If you feel that she isn't helping herself the way you think she should it is likely that you will do better if you focus more on just listening. As you listen, the victim will eventually begin to identify specifics about what she needs. As she does, you can then help her create a plan to accomplish those goals. This is a type of plan that is actually useful to the victim, because the plan will then focus on her unique goals or needs.