I'd missed the bit where she is being kept up nights with the anxiety over, er, some pictures. That sounds very, very difficult not to laugh at.
'Bit by bit' is a classic response, and better than my suggestion, would have been 'I know - I have so much to get done as well, busy busy busy!' and then rushing away.
what was there in the way of supermarkets in the village (how unbelievable is it that she doesn't even know??)
She does know. She wanted you to be forced through the pantomime of the conversation that then took place, with you offering multiple solutions to her problem as if it was somehow your job. The words themselves are not important, it's the emotion she wants to manipulate. Hence why her stories don't often make sense / contradict each other. Keep detaching!