Say your gf had a female friend who has put your gf down to the point she cried over it on two different occasions, months apart. After the second fight they had, her friend blocks her on fb and all that high school style bs. Another four months go by, the ex friend of your gf moves back to town, apologizes and expects your gf to hang out now that she said "sorry". She has not hung out with her yet but has been chatting it up with said ex friend.
What would you do as her caring man? Advise her that this very likely could happen again and that she has proven herself to be a cruddy friend and to be very careful not to allow herself to get hurt again by her?
Or let her get hurt, and after she gets hurt, then what?
What I did was the first, and holy shit, did I ever open the door to the bitch cage.... wowie...
Gf said that "I seem to be more offended then she is about it all." To which I said, "I am offended about what she did to the woman I love and care about, because I love her and care." And she got angrier. Ugh lol why tf am I in shit for caring!?
But yeah, what would be your avenue you would take?