I switched and made her active with ctrl select sim. When i tell her to "go home" she just visits a public place, stay there for a while, and then she goes "home" again to another public place.. Her husband and twin babies weren't in her family anymore. But they werent dead either. She couldn't invite her husband but her sisters can. So i guess you need a home to invite sims. I did move her into a house with a crib.. I use a awesomemodfriendly (crib invested) neighbourhood.