Parents receive 1 out of every 5 Valentines.
20
The single biggest predictor of love is proximity.
30
The average person will go on a date at least 100 times before they finally marry.
33
Two in five people in the world marry their first love.
270
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
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103