Any relationship matures with time. With the help of patience, tolerance, analysis of situational behaviors and various tests of understanding, it reaches a balance of comfort and ease. On the flip side, this creates a set of biases which has been established in the past and which unfortunately does not allow the future relationship to be stable. People do change with time based on so many factors which they go through. This also means that many a time old biases has to be kept aside and a new understanding has to be reached with new useful biases to be created for the future.