Do not go backwards.  When you have a disagreement with another, do not continue to replay it in your mind.  Do not dissect every little cause, every word said or action taken in anger.  You know very well what happened.  Going back digs up the emotions.  Move forward knowing you can do better.  Yes, learn from your mistakes.  In an argument, there are two involved, so yes, you are responsible as well.  Vow to do better next time and perhaps there will not be a next time.  In the meantime, be present as the presence of Love.  It was presence that was missing, or you would not have had the argument in the first place.  When you are present there are three of you present, not two.  Listen for the still small Voice in every moment that begins to heat up and you will avoid escalation.  You are so loved.