Well i do not agree with that at all. Love is not any thing chemical reaction. Love come from the heart, It is a feeling that takes you to a sphere when you are willing to do what ever it takes to Give all of your self for the well being of your love and family. Willing to do any thing to keep them from harm, to give all of your self in every meaning of life for there happiness and to be willing to die for them is necessary If that is what is needed. To sacrifice every thing for the person that is most dear to your heart would be a small step for love. and if lucky enough to find your partner that feels the same would be a God send to any one.

Love is not asking for anything from your partner but willingness to give what is needed to ensure there Happiness and well being on this Earth. And with family it just gets stronger.

Life with out love is like the photo below COLD and DEad
Or that is my view anyway, Post yours if better.