This paper explores the phenomenon of consumer relationship fading with a series of three adjacent studies. Analyzing two longitudinal behavioral datasets, Study 1 shows that about 1/3 of the relationships could be described as fading. Drawing on prior work in the marriage disaffection literature, Study 2 defines relationship fading for the consumer marketing context as a process of gradual decline in consumers' intention to continue their relationship with a brand, generally manifested in negative feelings towards the brand, diminishing frequency and/or volume of transactions with it, and initiation of switching intentions. It further identifies disillusion, disaffection, and crossroads as three distinct fading stages, and outlines boundary conditions. Study 3 observes relationship fading through a diary study approach and finds attitude movement in both positive and negative directions between the stages. Further, while positive attitudes generally decline over the course of the fading trajectory, negative emotions peak at the penultimate fading stage and then level off at the final, crossroads stage. By defining and analyzing consumer relationship fading, we improve understanding of an under-researched, large segment of consumers.