A quick history:
While the first talk of Valentine's Day started in the age of Chaucer, eating and giving chocolate for the holiday didn't start until much later, in the mid 1800's. It was then that Richard Cadbury figured out a process to separate chocolate into "drinking chocolate" and extract the excess cocoa butter to be made into "eating chocolates".
Although Cadbury didn't patent the first red, heart shaped box, it is believed that he made the first one. The boxes were beautiful and cherished, and after the candy was gone, could be used to hold mementos. Some have even become family treasures and heirlooms.
So when you eat candy at Valentine's Day, you are carrying on a long, delicious tradition.
Bring it on!