two things 1
It's proven to help sustain lasting relationships as well
Where is the data on this? It's been cited often enough that I'm assuming someone has actually gone ahead and looked at it.
2
Currently playing: Sengoku Rance
lol
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You're messing with me! You're messing with me, aren't you!?
You're making fun of me, aren't you!? Aren't you!? You definitely are! I'll murder you!