One in five long-term love relationships began with one or both partners being involved with others.
177
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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