luthienrising I added the [GRO] tag, as I remembered that the stayover guests were added in Growing Together. The ones that invite themselves over have always been unpleasant, either arguing and fighting if they come as a household, or sad if they come solo, so I don't always let them come. Their behavior interacts poorly with the Ailments system from Enchanted by Nature, which is something I've noticed ever since Enchanted by Nature came out.
This doesn't apply to stayovers that you set up, as they don't have the scripted behaviors mentioned above.
I'm currently playing a new save with mods disabled. The Gomes household from Ravenwood has invited themselves over, starting Monday and as expected have been mostly angry. It is now Wednesday, and Zelmira has Gnome Lure while Tziporah has another ailment (which one I'm not sure, red welts on her arms.) Radwan seems to have avoided being affected. I think I've made my point.