The very thing that gives you pleasure today will give you pain tomorrow, or it will leave you, so its absence will give you pain. And what is often referred to as love may be pleasurable and exciting for a while, but it is an addictive clinging, an extremely needy condition that can turn into its opposite at the flick of a switch.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment