Here's some interesting lore about love through the ages...

The phrase "Wearing your heart on your sleeve" dates back to the Middle Ages. Young men and women drew names from a bowl to see who their Valentine would be. They then wore these names on their sleeves for one week.
X's and O's ... Ever wonder how X's came to mean kisses? It's believed to have started in Medieval times, when people who could not write were allowed to sign documents with an X, which they then kissed to prove their sincerity. Over time, the Xs became associated with kisses.
Some people used to believe that if a woman saw a robin flying overhead on Valentine's Day, it meant that she would marry a sailor. If she saw a sparrow, she would marry a poor man. If she saw a goldfinch, she would marry a rich man.
In the 17th century a hopeful maiden ate a hard-boiled egg and pinned five bay leaves to her pillow before going to sleep on Valentine's eve. It was believed this would make her dream of her future husband.
The most fantastic gift of love is the Taj Mahal in India. It was built by Mughal Emperor Shah Jahan as a memorial to his wife, who died in childbirth. Work on the Taj began in 1634 and continued for almost 22 years. It required the labor of 20,000 workers from all over India and Central Asia.