[ARCHIVED] Sims who have been best friends/enemies remain as acquaintances

Maybe a separate issue but I thought it may be related. One of the sims in my original post (Jasmine Bee) has a father who she is friends with. He often visits (she obviously grew up with him). Anyway he has a big family aspiration and one the tasks there is to have a child get married. Jasmine got married but her dad's task remain incomplete. I'm not sure if my game is just having relationships bugs in general as I have other sims who had to re-introduce themselves to their relatives like aunts, cousins, and grandparents.