Tell her not to google triple negative. The info is outdated and scared me!!! I'm through 2/3 of my treatment and the little triple negative jerk is gone, chemo works well with it!
Send her cards each week or more often and write personal messages that you love her, youre thinking of her, etc. also, little gifts help--like send her something each week or every 2 weeks or something. Comedy books (Tina fey's bossypants was funny, also the S*%! My dad says helped me when I couldn't sleep. Assuming she's having chemo, send her a few scarves and/or hats. Maybe a thin hat for sleeping.
Gossip, jokes, all that helps too. Don't make every correspondence about cancer bc she wants to feel normal too.
See if you can help set up a meal calendar among her friends/neighbors/colleagues. Cooked meals made a difference when I was too run down after chemo to cook.