@xochiquetzl_xkvn I'm not entirely convinced that isn't a function of the mod, though. I don't believe my pets have ever been yellow without the "what's wrong" interaction available. Generally they're hungry, need the bathroom, or want pets. I may have seen the purple of fear as well, but never pink for playful, blue for confident, etc. And red doesn't always mean angry.
Though a not-intended-for-pets moodlet accidentally getting attached to a pet is entirely believable. So that's also possible. Maybe the cat walked in on someone in the bathroom!