'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
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
Couples' personalities converge over time to make partners more and more similar.
235
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
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
One in five long-term love relationships began with one or both partners being involved with others.
177
Wearing red increases attraction.
30
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81