Dyads—two-person relationships—offer emotional intensity but suffer inherent fragility. If one person withdraws, the relationship dissolves. This vulnerability creates subtle pressure that can distort authentic interaction. Research by Taylor, De Soto, and Lieb (1979) demonstrated that people feel safer revealing personal information in dyads, but this emotional intimacy comes at the cost of accountability. When two friends collude, they can easily rationalize shared failures. A 2011 study in Assessment & Evaluation in Higher Education found that 86% of dyad members assigned equal credit regardless of actual work distribution—a phenomenon researchers call egocentric bias.