Och aye, welcome!
Ask, vent, wonder---and receive all the support and information you will need to support her.
Even if she 'doesn't want to know about this site', you will be able to pass on information to her when she has questions and concerns---which she sure will have!
And others have printed off relevant posts/pieces of information for friends/family and found that they've slowly come round.
You are certainly in the best place.
Can you go to your 'My Stuff' and add something in your signature space to tell us where your friend's cancer is/dates etc.

Brenda