One of my bridesmaids, who is my fiance's sister, is giving my maid of honor, who happens to be my sister, a hard time. My sister tries to answer her questions but she gets snotty remarks in return. I am not really supposed to know this is going on but the bridesmaid, my fiance's sister, calls him to complain about the situation. It makes me upset that she is giving my sister such a hard time. Do I interfere? My sister says don't worry about it but this has been going on fo awhile. Our wedding is only three months away...I really want the fighting to stop! What do I do??? Any suggestions??? Thanks- Becky