How do the words online on Valentin's day look like?

Last hours of a sample of the blogosphere (14 diferent bloggs)
There isn't any sign of deep sadness! The dark blue doesn't show up at any corner of the screen! The words are full of good and strong emotions.
Will it go on like this during the week?....

Is it possible to collect emotions from text? What's the point? How to distinguish emotion from emotivity?
To the first, I would answer: We are always looking for emotions, we are always looking to create emotions, to infer signs from them, to express them in a deep and simple way... The text could show somehow the feelings of someone...
To the second, I would answer that words translate, communicate what happens to the soul in a more ou less efficient way, depending on various factors, inclusive, the sender's vocabulary. They come from the button of the personal choices that emerge from the reaction of the living being towards the world. They could be an interesting source of knowledge about the human being or merely an artwork...
To the third one, I can't answer yet... Perhaps the emotion belongs to the sender of the message and the emotivity lays on something else wearable...