Heisenberg's Uncertainty Principle

People have many a times expressed surprise over my certainty of marrying the girl I am in love with currently. "How can you be so sure that you'll still be in love with her five years down the line?"
Well, after some frantic flow of ions through the grey matter I have concluded that it all boils down to Heisenberg's Uncertainty Principle!
The confusion and indecision that pervade all other decisions of my life amply make up for the certainty of this one thing. At least, I hope so.