So the last time she paid, she "made such a fuss" and she got "sympathy" whilst you got "reproachful looks" from the staff.
Really? I highly doubt that staff were giving a woman in her eighties a reproachful look for allowing her friend to pay. Especially as you are presumably regulars if you only ever go there.
I think you were seeing shadows where there were nones
So, she made a fuss. As long as she pays, and you enjoy her company, i would suck up the "fuss".
I’m finished my festival poncho
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.