I am so sorry for you! But don't hate it when they make you cry - my Traditional Catholic Husband has often told me to "offer up" sadness or hurt - we never know what good it may do.
Also, the spirit that you showed this person may one day help her to remember that non or ex jw does not mean evil, vindictive frothing at the mouth apostate as she has been taught.
It sounds to me that you listened to her with sympathy if not empathy and left her with the emotional impact of many things swirling around in your head which means probably her's as well... She will go home and tell her parents and others...it will stick with her and maybe even some of them.
I say well done...who knows how this will ultimately play itself out.