Final answer:
In the concept of uncoupling, the stage of revealing private information and disagreements to others outside the relationship is called distancing.
Step-by-step explanation:
In Diane Vaughan's concept of uncoupling, the stage of revealing private information and disagreements to others outside the relationship is called distancing. According to Vaughan, most couples strive to maintain a harmonious public image by keeping private matters quiet, but when they start sharing these personal details with others, it signifies a distancing from their partner.
This stage of uncoupling involves creating emotional distance and seeking support or validation from people outside of the relationship.