Couples' personalities converge over time to make partners more and more similar.
235
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
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
One in five long-term love relationships began with one or both partners being involved with others.
177
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
Wearing red increases attraction.
30