sims 2 no relationship screen

Something just occurred to me that I didn't think to ask before. In the relationship panel, do you have "All" selected? Could it be filtered by chemistry, family, or household perhaps? If your Sim doesn't have any relationships with Sims they have chemistry with, or has no family or any other household members, then it would be blank. You've been playing long enough that this is probably not the issue, but it's worth asking. Even after 20 years I still occasionally forget something.