Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
Speed dating was invented by a Rabbi in 1999.
45
Two in five people in the world marry their first love.
270
Couples' personalities converge over time to make partners more and more similar.
235
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When dragonflies mate, their tails form a love heart.
22