Couples' personalities converge over time to make partners more and more similar.
235
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
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 medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69