My sister is my only bridesmaid. I found a BM dress at a local Bridal Store and it was on clearance. I am paying for her dress and she totally did not show today. that is the 3rd time that she has blown me off. she said she had cramps but on FB she was at the bar at 1:30 am. We went and looked a few weeks ago to look for a dress and she did not want to try anything on it was a total waste of time. I know that I have like 3 and half months left but if she has to order anything or have any Alterations we will be cutting it close. ugh I am so upset with her. What should I do