This cache is being placed to give people something else to do on Valentine's Day.
Why waste time, effort, and money giving (or expecting) trite things like chocolate, flowers, and dinner out? Do you really want your sweetie to show they love you by participating in these things just because "it's traditional" and "you're supposed to?" Of course not. Spend time together doing something unique, fun, and even good for you... like geocaching!
Don't have a current sweetie? Even better. This cache is for you, because who needs holidays invented by greeting card companies anyway?
UPDATE:
Other Valentine-themed caches published on February 14, 2011 in the Calgary area are:
Heart-Shaped Box of Chocolates by Everhollow
V is for Valentine by Everhollow
A nice Ramantic Walk by VanIsleCacher - ARCHIVED - destroyed in 2013 flood
8 of Hearts by geoguider54 (Note: Premium Member cache only)
Tethys C's Valentine's Day Stroll by C-side Girl - ARCHIVED
I left my Heart in San Francisco by One Bad Ant - ARCHIVED - location developed
Rosette Nebula by GeoWyrm (Note: Premium Member cache only)
Someday My Prince Will Come by green ducks - ARCHIVED - location developed
Heart of Stone by Everhollow