Bro, the save you sent me, Carol's quest stage is "successfully complete two dates with Carol", and yet she doesn't pick up calls and she is not beside Sandra during the interval, indicating she is indeed in her "shocked" stage and locking herself in the bathroom. Since her quest is already complicated by itself (mother scenes, recording, recovering the record, and shit ton of dates whose sequence I won't remember), and on top of it seems bugged af, the best thing I could so was finishing it for you trough variables. I understand you'd rather have played trough it, but this is what I managed to do
