My housemates played The Sims over our local network back in the day, which became an issue when one of them decided to become a homewrecker. She'd wander around our shared neighborhood, flirt with everyone, start some fights, and move on. Marriages didn't last long with her around, and pretty soon everyone's relationship history started to look like what you get when you scroll down a celebrity's Wikipedia page and notice how many ex-spouses they've got.
Do the same thing in Inzoi, and there might be even bigger problems. As points out, "When a single Zoi remarries multiple times, some family members may disappear." That's it, straight into the void with
at least some of your family. Which maybe isn't the worst outcome in the world.