If it wouldn't hurt her physically, personally I'd most likely stay out of it.
These days, not sure how right or wrong it is, but for the most part, I just don't like to get involved in anyone's business. Depends on the situation of course, but things usually play out the way they are supposed to without the help of me, I've found and it works better that way. But that is just me.
I am sure whichever choice you make will be the right one.
