The percent chance applied to each modifier that may make a boyfriend or girlfriend couple's relationship increase or decrease over time. A zero value means that relationship changes are disabled.

The percent chance applied to each modifier that may make spouse's relationship increase or decrease over time. A zero value means that relationship changes are disabled.

Specifies which Sim will move-out into a homeless household in the case of a breakup. If the household has in-laws of one of the Sims, the other Sim will always move-out first. Male and Female only apply for opposite-sex couples. Otherwise, it will always be random. None will never move a Sim out as a result of a breakup.

Specifies whether a Sim should take their children with them when they move-out due to a break-up. It is the percent chance the children will move so it can be set to 0 for never, 100 for always or something in between for a random chance.