Marital instability has hampered the growth and progress of many homes and children in Nigeria and is caused by a variety of problems, including poverty, impotency, parental influence, lack of trust, and so on. Its effects on children are numerous, including peer group influence, illiteracy, and lack of love. The research's goal is to conduct a survey and fit a model that will describe the pattern of marriage instability in Nigeria in order to identify the factors that trigger marriage instability in Nigeria. In order to get pertinent data about the overall attitudes of women and men in certain local government areas of states in the North Eastern region of Nigeria toward the causes of divorce among couples, questionnaires and inperson interviews were conducted with them. The number of unions, wealth (Rich, Middle, and Poor), religion (Islam, Christianity, and Traditional), partners' education level (No education, Primary, Secondary, and Tertiary), work at home (Away or At home), beating the wife when she declines sex (Yes or No), partner's fatigue/mood (Yes or No), fertility preference (Fertile, Sterilized, and Not Fertile), spouse's income, etc. are just a few of the categorical variables that were taken into account. The results revealed that every factor found in this study is important for marriage instability in North eastern region of Nigeria. According to the baseline survey respondents' breakdown, over 50% of respondents testified that infertility, beatings, sex satisfaction, partners arriving home late, and quitting or not working are the main causes of marital instability in the region.