I guess it all depends on the reason for not signing. It seems that you are slightly retaliating against your wife for her feelings towards splitting up. This could be manipulative and controlling.
If your reason are that in this economic times it makes more sense to fix the car than to replace it...then you are being logical.
Overall I am not up to speed on your stitch. I will try to catch up....but I would stay away from choices that are manipulative....you will be burned in the end.
