Conflicts tend to be the result of many contributory factors. Resolving conflicts depends on mapping these contributory factors, strong and weak, without falling into the 'blame game'.
In relationships, it is possible to see how the other person has contributed to the conflict without making them the villain and us the victim. It is possible to see how we have contributed to the problem without taking the blame upon ourselves.
Blaming always makes things worse. Understanding contributions opens a way to peace and forgiveness.