'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
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
Raj from the Big Bang Theory is married to Miss India.
11
One in five long-term love relationships began with one or both partners being involved with others.
177
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.
28