An interesting article in the newspaper. It told of a lab experiment that helped some test subjects to fall in love.
The technique was (1) the tell the subjects that the other lab subject really liked you, and (2) get them to make a continual and mutual exchange of confidences where you tell the other person intimate things about yourself and your feelings.
The result was that the couple of subjects seem to "fall in love with each other". The first couple got married and many of the rest seem to develop close attachments (in spite of the knowledge that they were involved in a lab experiment).
Does this sound valid to you?