This document discusses complex business relationships that have multiple dimensions beyond a simple work relationship. Complex relationships can occur when a work relationship also includes other personal dimensions like being friends, family, or romantic partners. This can lead to emotions or decisions spilling over between the relationship dimensions. The document provides strategies for avoiding complex relationships like clarity and structure in defining each relationship dimension. It notes that complex relationships are challenging and areas like family businesses, workplace romance, and friends evaluating performance can trigger ethical dilemmas.