One in five long-term love relationships began with one or both partners being involved with others.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Parents receive 1 out of every 5 Valentines.
20
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25