Over the years a lot of preaching, teaching & encouragement has focused on the dynamics of forgiving others & staying free of bitterness. The gulity party has been sadly ignored.
It helps hurting people do right if the offender will work to make things right. Apologize for bad behavior, repent of the sin, repay what you've taken & fix what you've damaged. Settling issues helps reconcile with others, liberates you personally & glorifies God.