it's amazing how we hang on those little "crumbs" isn't it? I posted today about what a difference the little greetings and niceties are in texts, etc.
I think what I determined today is that I tend to forget that W is also going through emotional ups and downs, and some days, she may feel like being nice, and other days not.
She may or may not be thinking about it the same way we are, and the fact that I am hurt when she doesn't do it, and I feel better by something as simple as a good morning or a thank you or a hello shows that I'm not truly emotionally detached yet.