It certainly looks like Taylor Swift, the biggest pop star on planet Earth, is going to marry Travis Kelce, her three-time Super Bowl champion beau, at Madison Square Garden on Friday.

While neither Ms. Swift nor Mr. Kelce has directly confirmed that their nuptials will take place there, over the past week, my imagination has been reeling with the potential for matrimonial stagecraft that only Ms. Swift could pull off. How many dresses will she wear, and what will they look like? Will Jack Antonoff be a bridesman? Will she perform? Who else will get up onstage? Paul McCartney? James Taylor? MGMT?

And yet, as I consider the expected event, I feel … well … “depressed” is the word.