Why Parenthood Strains Relationships: Investigating the Mechanisms Behind Declining Relationship Satisfaction

ABSTRACT Objective This study examines three key pathways in the association between the transition to parenthood and declining relationship satisfaction. Background The decline in relationship satisfaction among new parents is well documented, yet research on the underlying mechanisms remains limited. This study investigated three commonly proposed pathways: gendered shifts in household labor and resulting perceptions of unfairness, increases in negative couple behaviors (relationship conflict), and decreases in positive couple interactions (emotional intimacy and appreciation). Method The study used data on 4108 respondents of the German Family Panel (pairfam), a nationally representative survey conducted annually between 2008 and 2022. Fixed effects multiple mediation regression models were used to explore the mediating factors linking the transition to parenthood to declining relationship satisfaction. Results Following the transition to parenthood, relationship satisfaction declined persistently among both men and women. These declines were largely attributed to increases in negative couple behaviors as well as decreases in positive couple interactions. Among women, but not men, these declines were also linked to increases in household labor. Conclusion These findings highlight the pivotal role of both positive and negative couple interactions and behaviors in shaping relationship satisfaction following the transition to parenthood.