dp's friend's partner was diagnosed with a very virulent breast cancer just over a year ago. She had a double mastectomy and a long course of chemo and seemed to be rallying. However she's just found out that it has metastasized to her lung. She's been undergoing further chemo but no surgery has been offered.
I don't like to ask her or her dp about her long-term outlook in this situation. Could anybody with experience of cancer give me some advice?