The next thing that needs to be done to bring back peace in your relationship is discussion. The two of you need to sit and talk about how it all started. Discuss the causes and the events that led up to this. Also know the consequences that have appeared till now. It is important to know the damage beforehand so you can target specific areas and fix them. Now discussion the plan of action. Discuss how you both want to fix things and what has changed since it happened.