I can only speak from my personal experience with my W, but they aren't very logical and certainly not rational IMO. I still have a hard time today underatanding, What is she thinking?! From what I've gotten on here... Don't focus on it, don't try to understand or figure out why. You'd be wasting your time! FYI... I still do from time to time... Human Nature I suppose. Just be careful buying into her words. Hopefully she'll keep her word, but if she doesn't make any sense, does it make sense to trust her completely. Have a plan B, you'll likely need it when S hits the fan.
