Build consensus between 2 person

If its on the verge of breaking up , if its a reporting line , then it's difficult ! This is what I design base on " The Workshop Book "- by ICA
1. Buy in : lead to a " what is consensus "
2. Build a safe place : confidential reminder
3. Create a open environment : design an appropriate communication starter
4. Safeguard the individuality : doing single person brainstorming fist
5. Create the protocol when conduct discussion or feedback : listen / feedback / sharing
6. Owing the problem and account for result
7. Set a system for figure consensus process : card games