Relationship course theory: An interdisciplinary integrative proposition to address the complexification of interpersonal relationships

Researchers have been observing a complexification of interpersonal relationships in contemporary societies. However, current theoretical perspectives on relationships fall short of comprehensively grasping increasingly diverse and fluid relationship types (e.g., friends with benefits, polyamory, living-apart-together, coparenting, etc.) and patterns of change. In an attempt to meet the need for more integrative and interdisciplinary theorizing, this paper introduces a first outline of relationship course theory to better comprehend the complexity of relationships. In contrast to previous theoretical perspectives that conceptualize relationships as a single trajectory, I posit that the course of a relationship is composed of multiple intertwined trajectories, each of which stemming from differentiated domains such as sexuality, friendship, love, family, domesticity, and occupation. These relationship domains constitute a metatypology from which to examine the multiple sets of meanings and temporalities that intertwine throughout the course of a relationship. I propose that relationships are defined based on the combination of relationship domains, with different iterations and permutations of these domains producing various relationship configurations. Furthermore, the theory defines three levels of relationship courses: Sociocultural (i.e., stories that circulate about relationships in given sociocultural contexts), interpersonal (i.e., stories that individuals co-construct about the particular relationships they experience), and life courses (i.e., stories that individuals co-construct about themselves as relational beings). This proposition will hopefully stimulate the theoretical conversation on the complexity of relationships and foster dialogue between researchers from different theoretical and disciplinary affiliations.