is love addicting?

Throughout our lives we are driven to continue by phisical and mental dependancies. some being core to survival, such as food and water and some required to give a desire to carry on, such as love. on the surface love may not seem as key to survival as food does yet under closer examination one will find after having expirianced a true conection of love, like heroin, leaves you with a subconcious desperation for more.
like all addictions love or lack of it will leave a hole in you that you cant seem to fill with anything but what left it there in the first place. is it posiable to have a phisical dependancy on a mental desire? this is a contraversial subject but being as there are numerous cases of people going into depression or loosing weight over being "lovesick" i would say yes it is possiable to become phisicaly addicted to love.