Who and Why?
'Factors known to contribute strongly to falling in love include proximity, similarity, reciprocity, and physical attractiveness'. Similarity would seem especially important: some would even claim that 'when we fall in love we fall into narcissistic identification'.
Family therapists maintain that 'the reason we're attracted to someone at this very deep level is that basically they are like us - in a psychological sense'. Others suggest that 'the very act of falling in love sets in motion old patterns of how we love...Falling in love returns us to emotions of infancy and childhood'.
Read more about this topic: Falling In Love