Abstract

The purpose of this study was to explore the effects of intolerance of uncertainty and experiential avoidance on relationship addiction and to investigate the mediating effect of experiential avoidance in the relationship between intolerance of uncertainty and relationship addiction among unmarried adults. For this purpose, an online survey was conducted on unmarried adults aged 20 to 29 who are currently engaged in opposite-sex romantic relationships, and a total of 302 data were used for analysis.. The collected data were analyzed using SPSS 29.0 and PROCESS MACRO v4.2. The main results of this study are as follows. First, intolerance of uncertainty and experiential avoidance had significant effects on relationship addiction. Second, experiential avoidance had a significant mediating effect between intolerance of uncertainty and relationship addiction tendencies. This study identified individual psychological factors that induce relationship addiction. Based on the research results, this study suggests directions for counseling interventions to reduce relationship addiction tendencies and promote healthier relationship patterns among unmarried adults.