The Impact of Relationship Quality on Well-being: Review of the Mediating Role of Loneliness Across the Different Life Stages

Abstract: This literature review explores the complex role of loneliness as a mediator between relationship quality and well-being across different stages of life. The review carefully addresses how loneliness impacts an individuals overall well-being, starting from young adulthood and extending through to old age. It specifically delves into the fear of being single (FOBS), which is identified as a key factor that significantly affects relationship satisfaction and psychological health, particularly among young adults. The analysis highlights the dynamic nature of loneliness, showing how it is shaped by various factors such as changing social roles, life transitions and relational expectations. As individuals grow older, the sources of loneliness and its consequences evolve, requiring different interventions at different stages. The review also identifies a critical need for more in-depth studies focusing on loneliness interventions, especially for older adults and those facing mental health challenges, as these groups are often more vulnerable to the negative effects of loneliness. The findings underscore the importance of addressing loneliness to improve well-being and relationship quality across the lifespan.