This study focused on the associations between parental divorce and interparental conflict with young adults’ current attachment-related anxiety and avoidance, and romantic relationship expectations. The moderating effect of attachment history was also investigated. Using a sample of 1,078 Spanish young adults (544 women, 518 men; average age 21.4 years), our results confirmed that parental divorce is not associated with young adult children’s higher attachment anxiety and avoidance nor poorer romantic relationship expectations. Moreover, interparental conflict is more strongly associated with attachment-related avoidance (p < .001) and romantic relationship expectations (p < .05) than parental divorce, yet depending on attachment history. In fact, in support of our hypothesis, a more secure attachment history with mother has a buffering effect on the association between high-unresolved interparental conflict and attachment avoidance (β = .17, p < .001). Findings add to the existing literature and promote a better understanding of the complex associations between parental divorce and conflict on adult children´s current attachment and relationship expectations.

Multiple theories and models (e.g., attachment theory, rejection sensitivity) suggest that relationship expectations, such as views of others as trustworthy, reliable and supportive, are important outcomes of relationship experiences. We used a new measure to assess children's (N = 837, age 9 to 13 years) optimistic and pessimistic relationship expectations of their family relationships separate from their expectations of peers/others. Our aim was to investigate whether family structure, interparental conflict and parenting dimensions were important correlates of these two aspects of children's relationship expectations. Six maternal and paternal dimensions of parenting were measured, including warmth, rejection, structure, chaos, autonomy support, and coercive behaviour. Children who reported witnessing more interparental conflict had more negative relationship expectations about their family and about others, but these associations were no longer significant when the parenting dimensions were considered. Family structure was not associated with children's relationship expectations of peers/others, but children who had experienced parental divorce had less positive family relationship expectations. Overall, many of the six parenting dimensions were associated with family expectations, but fewer were associated with expectations of peers/others. Further, the maternal parenting dimensions associated with children's relationship expectations differed from the paternal dimensions. These findings are important for understanding how children think about their relationships and may guide the development of interventions targeting children of divorce.