This person that you have fallen in love with, whether it is your partner or your baby, has opened new pathways in your brain. To make it clear, it is not just the hormones that are doing this. If hormones are dumped into the brain when you are in a room by yourself, this bonding will not (cannot) happen. It is only when these life-changing experiences happen to us while interacting with the other person that we fall in love—we deeply encode and remember the way they look, the way they smell, the way they feel, and provoke us to yearn to find them, over and over again.
