Relational needs represent an important aspect of interpersonal relationships, and their satisfaction enables individuals to feel accepted, safe, and connected to others. Interoceptive awareness, which involves the processes of perceiving and processing internal bodily signals, also plays an important role in interpersonal relationships. This master’s thesis examined the relationships between relational needs satisfaction within romantic relationships, interoceptive awareness, and relationship satisfaction, as well as the mediating role of interoceptive awareness. The study was conducted on a Slovenian sample of 273 individuals, including 221 women and 52 men. Participants were between 18 and 70 years old and were all involved in a romantic relationship at the time of participation. They completed the Multidimensional Assessment of Interoceptive Awareness, the Relational Needs Satisfaction Scale, and the Relationship Assessment Scale. The results showed that higher relational needs satisfaction significantly predicted higher relationship satisfaction. Higher relational needs satisfaction also predicted higher scores on the Not-Worrying and Trusting dimensions, which in turn significantly predicted higher relationship satisfaction. Mediation analysis revealed a significant total indirect effect through the dimensions of interoceptive awareness, with Not-Worrying emerging as the only statistically significant specific mediator. The direct effect of relational needs satisfaction on relationship satisfaction remained statistically significant after the mediators were included. The findings indicate that different aspects of interoceptive awareness do not play an equally important role in explaining the relationship between relational needs satisfaction and relationship satisfaction, and that interoceptive awareness accounts for only part of this relationship. Lower levels of worry about unpleasant bodily sensations appear to be particularly important and may represent one of the processes through which relational needs satisfaction is associated with higher relationship satisfaction. The study thus contributes to a more comprehensive understanding of relationship satisfaction by highlighting the interplay between interpersonal factors and different aspects of interoceptive awareness.
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