Delia Fri May 04, 2007 2:18 am GMT
Old Victorian etiquette dictates that you never congratulation a bride on her wedding because it implies that she's the lucky one who got someone to propose marriage. The groom is the one to be congratulated for getting the lovely lady to accept his proposal. You give the bride your best wishes.
Of course, in this day and age, many people don't follow these rules, if they're even aware of them at all.