If your partner is still identified with the mind and the pain-body while you are already free, this will represent a major challenge—not to you but to your partner. It is not easy to live with an enlightened person, or rather it is so easy that the ego finds it extremely threatening. Remember that the ego needs problems, conflict, and "enemies" to strengthen the sense of separateness on which its identity depends. The unenlightened partner's mind will be deeply frustrated because its fixed positions are not resisted, which means they will become shaky and weak, and there is even the "danger" that they may collapse altogether, resulting in loss of self. The pain-body is demanding feedback and not getting it. The need for argument, drama, and conflict is not being met.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment