Every addiction arises from an unconscious refusal to face and move through your own pain. Every addiction starts with pain and ends with pain. Whatever the substance you are addicted to—alcohol, food, legal or illegal drugs, or a person—you are using something or somebody to cover up your pain. That is why, after the initial euphoria has passed, there is so much unhappiness, so much pain in intimate relationships. They do not cause pain and unhappiness. They bring out the pain and unhappiness that is already in you. Every addiction does that. Every addiction reaches a point where it does not work for you anymore, and then you feel the pain more intensely than ever.
— Eckhart Tolle