That's really interesting. I may have bungled the wording of the question. A guy I knew in college asked some people that question, and 100% of the men he asked wanted to know the truth, while 100% of the women wanted to live under the misconception.

I should have been more specific, perhaps, taking care to mention that if you go with the "live the falsehood" option, it is given by the question that you are guaranteed NEVER to find out -- your significant other will act like a perfectly loving mate to the very end.