There are times when a commitment is made on good terms and the bond of such a commitment can be easily honoured. However, there are cases when these terms become subject to strains that may threaten the relationship on which the commitment is based. When these strains overwhelm, the bond is broken.
The commitment, entangled with the relationship, should be broken as well.
However, this bond sometimes does not end. In such cases, the commitment cannot be said to be honoured; rather, it exists out of pity. Such a motive is rarely something to be desired. It is best to end such an engagement instead of falsely keeping it alive, for commitments, much like relationships, are partially based on the self-interests of those involved. When they are not, one person assumes the role of a liar.
And the other is being lied to.