Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Two in five people in the world marry their first love.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Parents receive 1 out of every 5 Valentines.
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Couples' personalities converge over time to make partners more and more similar.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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