This article explores Heinz Werner’s developmental theory and applies key concepts—particularly the orthogenetic principle—to the understanding of intimate couple relationships. It analyzes how such relationships evolve from undifferentiated, global interactions toward increasingly differentiated and hierarchically integrated forms, offering a theoretical framework to conceptualize couple dynamics as complex, evolving processes. Central developmental dimensions such as differentiation, hierarchization, and affective-emotional functioning are considered as integral to both psychological and relational growth. Werner’s approach emphasizes the intertwining of cognition and culture, shedding light on how subjective experiences and contextual meanings co-develop and become socially and symbolically mediated. Special attention is given to how emotions and intimacy are symbolically constructed and transformed in close relationships, through mechanisms such as metaphor, taboo, and aesthetic expression. The article argues for the relevance of these developmental principles in understanding the micro-processes of affective life, aiming to enrich both theoretical perspectives and practical approaches to supporting relational transformation and the strengthening of emotional bonds. In light of Werner’s theory, intimacy can be understood as a dynamic symbolic process, where emotional closeness is transformed into shared meaning through symbolization.