Five Husbands - Status

The girl who thinks I have five husbands was working very hard on a piece - and nothing had been mentioned about my Other Life (if it really is...), so I wasn't prepared.

Girl: Um, Miss M...?
Me: Yes?
Girl: Oh wait... should I call you Miss M or Mrs M?
Me: Why ... would you call me... Mrs M? [as soon as I finish this sentence, I know what's around the corner]
Girl [in the super-slow, "I can't believe I have to explain this to you" way particular to 11-yr-old girls]: Because you have five husbands.  Duh.

Face palm...