What is the fine-grained topic of the following text: A short tryst can ruin lives, in many different ways, including by disease, long before the AIDS crisis, there were Hepatitis B, and C, Syphilis (which can lead to serious damage to the brain and the nervous system; mental deterioration; loss of balance, vision, and sensation; leg pain; and heart disease, and other issues), other side effects of sexual sins are the break down of the family which leads to a host of possible negative effects to the children who lose at least partial contact with a beloved parent, cases where spouses have snapped and murdered both their cheating spouse and the person they cheated with. Only return the topic.
The potential negative consequences of infidelity.