Men with the Day Pillar Sitting on the Robber Star (劫财)
For men born on days like Bing Wu, Ding Si, Ren Zi, and Gui Hai, the day pillar sits on the Robber Star. Since the day pillar represents the spouse's palace, it should normally sit on the Wealth Star (财星). However, when the Wealth is taken by the Robber Star, will the marriage be good? This leads to an unharmonious relationship between husband and wife or poor health of the wife, and even tragic events like separation or death.
Men with Multiple Robber Stars (比劫)
Both the Twin Star (比肩) and the Robber Star (劫财) are factors that suppress the wealth of the wife. Men with multiple Robber Stars tend to have a short temper, be impulsive and crude, lack composure when dealing with matters, be competitive, narrow-minded, and thus most often have poor marital relationships. Moreover, wives of those with many Robber Stars may be involved in affairs with brothers or friends, which is not conducive to marital stability.
Men with Many Secondary Wealth Stars (偏财)
In the theory of birth chart, the main wealth star represents the wife, while the secondary wealth star represents mistresses. A man with many secondary wealth stars tends to have many mistresses throughout his life. A man with many secondary wealth stars but no main wealth star is often flirtatious, lacks family values, and frequently engages in extramarital affairs. As stated in the classic texts: "Men who sit on the secondary wealth star in the day pillar 'love the concubine more than the wife'." A man with many Food Gods (食神) and Injury Stars (伤官) along with secondary wealth stars is likely to be flirtatious, sexually active, and easily tempted by beautiful women, leading to infidelity and affecting the marital relationship.

Female Birth Chart

Women with the Day Pillar Sitting on the Injury Star (伤官)
In the theory of birth charts, women are represented by the Official Star (官星) as their husband. Women with the Injury Star are usually irritable,不服管束 (disobedient), often argue with their husbands, and desire freedom, naturally resulting in a poor marital relationship. Especially women with the Injury Star sitting on the day pillar tend to scold their husbands, leading to an unsatisfactory marriage. In severe cases, they may harm their husbands or cause their husbands to have poor health, making divorce more likely. For example, women with day pillars like Jia Wu, Yi Si, Geng Zi, and Xin Hai often have unhappy marriages.
Women with Strong Injury Stars and Many Food Gods
The Injury Star is a factor that suppresses the Official Star (representing the spouse), and when the Food God becomes the Injury Star, it can lead to instability in the marriage.
Women with many Injury Stars and Food Gods tend to dislike being controlled themselves, yet they want to control their husbands. They have bad tempers, unstable emotions, and are prone to infidelity, which can also lead to their husbands having affairs. Therefore, their marriages are difficult to last long.
Women with Confused Official and Killing Stars (官杀混杂且同透)
In the theory of birth charts, the main official star represents the husband, while the killing star (also known as the seven killer) represents the lover. If a woman’s birth chart contains both the main official and the killing star, it indicates she has both a husband and a lover throughout her life. The presence of both official and killing stars suggests that her marriage will be unstable, possibly leading to divorce or remarriage, or having extramarital affairs. This depends on the specific combination in her chart.