Based on the most popular versions of this trope (often found under tags like "boss romance" or "secret identity drama"), here are three ways the "wife and mother version" of the surprise plays out:
Her boss, Mr. Crane, was a fair man but distant. He knew her as the one who always had a coffee stain on her sleeve and a snack bag in her drawer. He didn’t know that before kids, she’d led a national sales team. He didn’t know she spoke three languages. a+wife+and+mother+version+surprise+for+the+boss+link