That is without a doubt the nicest thing you've ever said to me. :,)
Anyway, it depends on who showed up. If it was a girl from college I liked, I'd let her off easy, explaining I'm not looking for a relationship at this point in time.
If, on the other hand, it was a grade school sweetheart, I'd smile widely, and then immediately slame the door in the bitch's face.
What would you do if the world became an anime (complete with exaggerated facial expressions, mild superhuman abilities, and hairstyles that'd make Goku groan and smack his forehead)?