Variables that influence "Falling in love"

I was thinking about love, why people fall in love and what are the elements that are involved in the whirl of emotions that tend to turn into addiction. What causes for oneself to feel of the sudden less pragmatic, more nonobjective and yes... walking in Cloud #9.  

I found this article in TIME magazine written by Eric Barker on June 25, 2014 in the Psychology section ...

When researchers asked people to tell the stories of how they fell in love they found out that variables may be narrowed down to 11. 

1) Similarity in attitudes, background, personality traits

Opposites attract… um, not all that much.

People are likely to choose as lovers and marriage partners those with similar characteristics. Furthermore, the more similar couples are in personality and background, the more comfortable they are with each other, the more compatible they feel, and the greater their satisfaction from the relationship. Consequently, couples who are similar in attitudes, temperament, and behavior are more likely to stay together over time.

2) Geographic proximity or... just being near

Being nearby helps a lot. If you’re looking for love, definitely ask yourself where you’re spending your time. 
As marketers know very well (and anyone looking for love should learn about marketing), repeated exposure makes us like almost anything.
Repeated exposure, it turns out, increases our liking for practically everything, from the routine features of our lives to decorating materials, exotic foods, music, or people.
Repeated exposure intensifies the dominant emotion in the relationship. When the dominant emotion is anger, repeated exposure enhances the anger. When the dominant emotion is attraction, repeated exposure enhances the attraction.

3) Desirable characteristics of personality and appearance 

Having a strong sense of who you are and a lot of self-confidence is a good predictor of whether you are going to fall in love with anyone. 
People who have a high frequency of love experiences tend to have high self-confidence and low defensiveness…  The stronger people’s sense of self, the higher their ability to be intimate.

4) Reciprocal affection, the fact that the other likes us

Any type of situation that affects us emotionally increases the chance of falling in love.
Sometimes, the heightened emotional sensitivity followed an experience of loss, such as the death of a parent or a painful breakup.This is why people fall in love on the rebound. This is why we see Stockholm Syndrome.

5) Satisfying needs

People will come into your life for a specific moment, a day, or a lifetime. It matters not the time they spent with you but how they impacted your life in that time. 

6) Physical & emotional arousal

Any emotionally arousing situation has the potential to fool us into thinking we’re in love.
When we are aroused, the origin of the arousal does not matter, and it does not matter whether we are aware of the reason. Arousal automatically reinforces our natural response, including attraction to a potential partner.

If repeated exposure changes our perception then it is logical to start paying close attention to physical attributes, personality and character that seemed attractive since the beginning but with proximity they turn into irresistible and even not ever found factors.

7) Social influences, norms, and the approval of people in our circle

8) Specific cues in the beloved´s voice, eyes, posture, way of moving 

9) Readiness for romantic relationship

10) Opportunities to be alone together

11) Mystery, in the situation or the person  

So... who do you love? Me or the thought of me?