You can win the battles against your opponents by forwarding arguments, emotional blackmail and beating breasts and crying but these battles do no good in the long run. This means that despite knowing that you are at fault you are not inclined to admit them. The greatest impediment in resolving the problem is lack of introspection. If we examine for a few minutes before going to bed what we have done or talked or what was our behavior towards other, was it justified really or was it the sheer refusal not to admit our faults, we can attain peace and serenity not only for ourselves but for those who we are fighting with.
Second most important fact is to possess the feeling of remorse and admit to the opponent that you were at fault but at the time anger and other negative feelings overpowered us, we can fill the opponent with a feeling of confidence and love. Otherwise the beast of mistrust will be rear its head again after few days. In the end either of us will be decimated other will be left as repentant fool.