This quantitative survey among migrant and intercultural couples in the Netherlands investigates the relationships between marriage preparation, pastoral accompaniment and relationship quality. Relationship quality may be negatively influenced by a process of cultural transition, by instability of the relationship itself or by underdeveloped communication skills between partners. Participants (n=223) have been married in the Catholic Church between 1995 and 2021. Correlations between various religious and spiritual activities and relationship quality have been calculated through linear regression analysis. Results show that overall, migrant couples and intercultural couples appreciate a more intensive, professional, and welcoming Marriage and Relationship Education (MRE) and pastoral accompaniment after marriage. It is also concluded that seeking reconciliation after a conflict (r=0.361) and experiencing forgiveness from one's spouse (r=0.188) are significantly associated with a higher perceived relationship quality. Finally, data indicate that migrants with a non-Western cultural background show a significant pattern of cultural defence (μ=-0,375) in comparison to Dutch people.