Dear RM,
I'm so sorry to hear about your friend. She clearly has a special place set aside for her in heaven. I know that this is hard to endure (my Mom passed 24 years ago with the same thing - HOWEVER chemo, surgery and radiation have come a long way). Make sure you talk to her often, don't dwell on the illness, but listen if she needs to talk. Love her for who she is rather than allowing her identity to be linked with her illness. She'll cherish the time that you spend together.
Let her know that so many of us have her in our prayers!
With much strength and support,
Beth