This presentation provides an often overlooked model for understanding process addictions: dualistic passion. The concept of dualistic passion denotes a highly valued behavior that has become connected to a person's identity. The two sides, harmonious and obsessive passion, delineate how this pattern of behaviors can become problematic. Using this model allows us to better understand how and why individuals become addicted to common process behaviors such as online gaming, pornography, and shopping but also exercise and work. Etiology, diagnostics, and treatment will be explored.