The document discusses Relational Dialectics theory which views intimate relationships as defined by ongoing tensions between opposing tendencies such as intimacy and independence, closeness and autonomy, inclusion and seclusion. These contradictions are a natural part of relationships and provide opportunities for dialogue rather than ultimate resolution. The theory outlines common contradictions and strategies for dealing with them, but has been critiqued for its potentially contradictory nature and perception of relationships as messy systems defined by opposition between all relational forces.