Couples' personalities converge over time to make partners more and more similar.
235
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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
The average person will go on a date at least 100 times before they finally marry.
33
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Historically, sweat has been an active ingredient in perfume and love potions.
309