Write a summary of the text in English, including the most important points using your own words whenever possible (maximum 50 words,). As today's bride and groom celebrate their wedding, they have every excuse for being nervous. They exchange promises of lifelong fidelity and mutual support. However, all around them, they can see that many people do not and cannot keep these promises. Their own marriage has a one in three chance of divorce, if present tendencies continue. Traditional marriage is facing a crisis, at least in Britain. Not only are there more and more divorces, but the number of marriages is falling. Living together is more popular than before. The family is now no longer one man, one woman and their children.