I come from a tight knit family and we all love spending time with one another. Sadly, my grandmother (GM) has recently decided to stop speaking to my mother (M) and cut her off. GM and M have always had a rocky relationship as they have quite different personalities and GM tends to be easily offended by things M does, while M often feels like GM overreacts.
Prime example - GM called M last week to discuss Christmas dinner and what to bring to M's house. M didn't pick up the phone calls because she was on the phone to work and later was out to dinner. When M called GM the next day, GM said "thank goodness it wasn't an emergency" and M told GM "if there is an emergency, you have to call the ambulance or police". GM took this as though M wouldn't care if something happened to her, and for her was the last straw and she has since called M and basically told her she is done being her mother and doesn't want to have anything to do with her anymore.
They both came to my home last night for dinner (I invited the family over about a week prior to this happening) and they didn't utter a word to one another let alone look the other's way.
I am utterly devastated and the whole family has tried to (nicely) tell GM that she is in the wrong but she refuses to listen to any voice of reason. I feel horribly about this whole situation but am clueless as to what to do to help them reconcile and similarly unsure how this will pan out with the wedding. Ugh!!