Research on marital relationships has consistently shown that external factors, such as family relationships, can influence marital satisfaction (Klohnen & Mendelssohn, 1998). In Asian cultures, the mother-in-law is often considered a vital part of the family (Hsu, 1998). Studies have shown that a positive relationship with the mother-in-law can lead to increased marital satisfaction (Chow & Lucas, 2011). However, other research has highlighted the potential challenges that arise when navigating these complex family dynamics (Lee & Lee, 2015).