I just received a text from a friend that her and her boyfriend can no longer make it to our wedding because she forgot her daughter has a school dance she is chaperoning. We are 10 days out and just made our final payment this past Saturday. Obviously I know things happen but I feel this excuse is ridiculous considering they have had the Save the date for 8 months and RSVPd.... I am super angry and am not sure how or if I should answer her text. Do I just say "that is unfortunate" and leave it at that?