Please use this thread going forward: [LD] Excessive autonomous 'Speak dead language'/Relationship deteriorating | EA Forums - 12114690
I have the same problem and it's driving me crazy. My Sim with maxed thanatology keeps autonomously speaking the dead language to his wife, and it always causes a negative reaction with her. In the attached picture, they had just gone on a date the night before and had maxed pink and green bars and were Very Satisfied in their romance. This morning he speaks the dead language to her and now she has a festering grudge against him, though it only took a small chunk out of their pink bar. I really, really dislike having to repair their relationship constantly. Is it some like/dislike on her part? Something I can adjust?
Needs to be tuned; sims don't stop speaking dead languages and killing off their relationships.
