Cohabitation, defined as two individuals living together without marriage, is increasingly prevalent, particularly in the Philippines. This study employs a quantitative research methodology to analyze the relationship dynamics of cohabiting couples in General Santos City. Utilizing a descriptive correlation design, data were collected from 60 randomly selected cohabiting couples through adapted survey questionnaires. The study explores how cohabitation impacts relationship satisfaction and stability, addressing questions regarding various cohabitation statuses and their influence on relationship dynamics. Results indicate that cohabiting couples report high satisfaction levels, with an aggregated mean score of 3.58, suggesting that their experiences are comparable to those of married couples. Furthermore, a significant positive correlation (r = 0.323**) was found between cohabitation status and relationship dynamics (p = 0.000), indicating that while cohabitation is not the sole determinant of relationship quality, it significantly shapes couple interactions and support mechanisms. The findings align with existing literature highlighting the dual nature of cohabitation; while it can enhance intimacy and shared experiences, it also introduces challenges related to commitment and shared responsibilities. The study concludes that understanding the complexities of cohabitation is essential for promoting relationship stability among couples. Recommendations for future research include exploring factors contributing to initial satisfaction levels and developing community support programs tailored for cohabiting couples to enhance their long-term relationship quality.