It is clear that Granny's possession of love letters to both George, the man who jilted her, and John, the man she eventually married and had children with, reflects her continued romantic feelings towards them both. Clearly both men occupied a very important place in her heart, and even though George jilted her so many years ago, her continued romantic feelings towards him are reflected by the fact that she still possesses the letters that he wrote to her. This of course is something that concerns her as she contemplates what still needs to be sorted out before she dies:
All those letters – George’s letters and John’s letters and her letters to them both – lying around for the children to find afterwards made her uneasy. Yes, that would be tomorrow’s business. No use to let them know how silly she had been once.
As the story continues, we can see by the way in which Granny wants George to be told how happy she has been in life that she really does continue to love him and to have feelings for him. If she had been able to get over him, she would have disposed of his letters and moved on. She still remains just as hurt from this act of jilting now as she was when it first occurred.