So, the wedding is cancelled and the engagement is off. All the bills have been split and details settled. And now, you have to face curious acquaintances chomping at the bit to get the juicy details. Of course, it is completely up to you how much to share, although as we have learned from reality television, saying less, while not as emotionally satisfying, is the only way to maintain your dignity.
First, if someone approaches you wanting details, they are already overstepping their bounds. Sympathy or offers of help can be welcome and well-intentioned. Gossip-seeking is not. If someone asks you what happened, it is usually best to offer a vague and quick response, such as, "Sometimes things just don't work out, but thank you for your concern". If they continue to press you, smile, but be firm and simply say that you don't want to talk about it.