David,
Quite a few of us have also had BC. None of it is good but with the recent improvements made in treatment there is more hope for a successful recovery and long term survival. I have a sister who has had a very agressive form of BC for 6 years and has been responding well to chemo and meds which seem to be keeping it under control. I tease her because she is like the Cheshire cat in Alice in Wonderland. The spots grow and disappear and sometimes her scans come back clear for a while and she is off chemo for a few months. If she had this a few years earlier she would probably not be here today.
I would recommend that you discus Linda's case with your doctors. I was encouraged when I was told that the drs. I had were the best for what I had. It would be good to talk w the cancer support person(s) at your facility. There is so much info and support for BC that the info can be overwhelming.
Praying for you in your new role as caretaker.
Malka