Hey in advance sorry for my english. My best friend has bpd.  All the time something is going on it is verbally violent, this relationship is very toxic and I can't cope anymore, I'm tired.  She is proud of herself because it makes her different from the rest. She doesn't want to heal 
I can't do it anymore
but that she will make a victim of herself
How could I hurt her 
When I'm the sufferer
What to do?