DEAR MISS MANNERS: I am currently seeing my ex-husband, and we are at a loss as to how to introduce each other to new people.
GENTLE READER: As you and your ex-husband have agreed to make a fresh start, the same courtesy should be extended to the people you meet. Miss Manners leaves up to you whether that means introducing him by name or as your suitor or fiance.
If anyone knows enough to ask if you were not once married, you can then acknowledge that you were. But when doing so, it would be best not to look perplexed, as if the fact had somehow slipped your mind.