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. Many "love" relationships, after the initial euphoria has passed, actually oscillate between "love" and hate, attraction and attack. Real love doesn't make you suffer. How could it? It doesn't suddenly turn into hate, nor does real joy turn into pain.
— Eckhart Tolle