@Annie2008 I think I know how to do this now. I put in the cheat any time that gameplay is occurring but not in cas. then I go to the family's house, or edit them, or even play them then either use the a plus b button cheat or go to a mirror and change sim. I did this the other day with a family I was going to edit then upload to the gallery. It would allow me to make fiancé/husband/wife etc. But something that kept happening was once i made the parents husband and wife, one of the daughters kept returning back to household member, and if I went and changed her to daughter, then the parents' husband/wife relationship was changed. I'm not sure what the issue was, but I'm learning more about how to do this now so it's not really an issue anymore.
