A recent study published in Personality & Individual Differences found that relationship satisfaction over a nine-year period is primarily influenced by one’s own personality traits, with Neuroticism having a negative effect and Conscientiousness a positive effect, while partner traits had negligible impact. Kathrin Bach and colleagues investigated the long-term relationship between personality traits, specifically the Big Five (Neuroticism, Extraversion, Openness to Experience, Agreeableness, and Conscientiousness), and relationship satisfaction, motivated by prior findings linking personalit…
