Social interactions are all negative

Hi! Since 2 days, all social interactions I try to perform with my sim trigger a negative response, even when they have a "good compatability". Friends have randomely turned into enemies as well. This has been happening across saves, so I don't think it has anything to do with my sims traits. I have no mods, but did recently install the new expansion pack Adventure Awaits. A few weeks ago, it was the other way around; all interactions were overwhelming positive causing higher friendship levels after just 2 interactions. Has anyone else experienced this recently? How do I fix it? I've already cleared my cache, turned off autonomy...