ATHENS - A bride-to-be suffered a nervous breakdown the night before her wedding on the Greek island of Crete when she discovered the groom, dressed in her wedding gown, in the arms of his best man. The future husband and wife were celebrating at separate parties when the bride's friends asked to go see the wedding dress at the couple's home. When they arrived, they found the gown-clad groom in a passionate embrace with the best man. The young woman has been treated at a clinic, and the wedding has been canceled.