One in five long-term love relationships began with one or both partners being involved with others.
177
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
Couples' personalities converge over time to make partners more and more similar.
235
40% of people who are rejected in romantic love slip into clinical depression.
72
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The left ear is more responsive to words of love and emotion whispered into it than the right.
44