Our attachment to loved ones and friends is also very addicitive. And it is one of the toughest attachments to get rid of too. You cannot hate them because you would end up hating yourself. Loving them too much also sometimes ends up in a not so favorable situation. As the author mentioned, it requires a lot of skill to be able to achieve that balance. It requires a lot of spiritual guidance too in order to achieve complete detachment. In my life, I'm having this constant battle between how much to be attached and how to detach myself.