Whats in love?

Isn't it amazing how it all happens? That you spend your entire life surrounded by people you love, and they love you back. Looking at a mother just after birth, eyes gleaming with excitement. The little hands of her bundle of joy tightly gripped close, eyes tightly closed. And yet she feels a kind of attraction to this baby more than the world and all in it. Maybe that is explainable, the connection of mother to a child she has painfully but patiently carried for nine months.
But consider walking across the street and a short glance over your shoulder points you in the direction of a stranger. Someone you have never even dreamt of seeing. And then it hits you like a tsunami. You feel a kind of attraction whose magnitude you never thought existed. With just a single look at her, you feel like your whole world should rotate around her. Like she was made to be the pivot for your universe. What's in love that makes you want to give up everything to want to be with that stranger?What's in love that makes you sometimes utterly ready to forget all the people that have been part of your life right from the first day? What's in love that bounds you in a spell so strong its hard to break? Whats in love that makes you want to opt for the angel you don't know instead of the angels you know that have been beside you throughout your life journey. What's in love?