We have all had the experience of failing time after time in changing old habits. Then suddenly these old habits lose their hold on us. What was so attractive suddenly becomes unattractive. This is a sign that God has accepted our repentance. At this point, my sheikh used to say that we are no longer responsible for those old sins. We have truly changed and we are now someone who is not even tempted to commit them.
Robert Frager, Heart, Self & Soul, The Sufi Psychology of Growth, Balance and Harmony