Romantic relationships are considered to be the most important bonds established in adulthood (Mikulincer & Shaver, 2007). Accordingly, extensive empirical efforts have been expended on delineating factors linked with couple satisfaction. Given the intricacies of these relational bonds, a plethora of studies have likewise focused on exploring the elaborate and explicit processes of close relationships. What emerged was one of the most prolific theories of close relationships: attachment theory.

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... Despite the recognized and confirmed role of attachment processes in couple satisfaction (Feeney, Noller, & Hanrahan, 1994), studies have seldom examined how the relation between explicit relationship factors and couple satisfaction may differ as a function of an individual's romantic attachment. The understanding of the link between variables is often enhanced by understanding what limits or improves this relation, for instance, for whom or under which circumstances (Hayes & Matthes, 2009). Such theoretical accounts of an effect are frequently tested and strengthened by the examination of a moderator effect (a variable that impacts the strength or direction of a predictor and outcome variable; Baron & Kenny, 1986). Accordingly, the overarching aim of the thesis was to explore original moderation models examining whether the established relation between jealousy (article 1) or intimacy (article 2) and couple satisfaction, respectively, differs for individuals with distinct romantic attachment patterns (i.e., attachment anxiety versus avoidance). In this way, the goal was to not only implement novel explorations extending current knowledge of the aforementioned link between jealousy or intimacy and couple satisfaction, but moreover, highlight for whom such relations may differ. Explicitly, the main objective of the first article was to implement a unique model exploring the moderating role of romantic attachment on the relation between emotional, iv cognitive, and behavioural jealousy and couple satisfaction [...]