A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Parents receive 1 out of every 5 Valentines.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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