Sounds to me like she's not truly a friend to begin with so not much of a loss if you ask me.

One thing I have learned in life is that friends come and go and you always find out who your true friends are when you've hit an all time low in your life, the true friends will still be there for you and the fake ones seem to just disappear.

I too have been robbed and beaten by gun point and it's extremely scary not to mention i'm lucky to still be alive, I don't think I would be too jazzed about having a friend turn their back on me after I was almost killed. Really, she did you a favor, you don't need people like that in your life and you will make new friends soon enough.

Concentrate on your son and forget her. Just my two cents.