IS, I have been excessively nice to my WAW and it has been met at best with indifference. I even bought her a bed when I found out she was sleeping at night in a sleeping bag in her new place (that image broke my heart). It took a few days before she even acknowledged it or said "thank you". Since then, she been right back to cold, distant and occasionally kind of mean. So I am beginning to see that nastiness is pattern in walk-aways, but I don't get the psychology of it. Maybe each case is unique and maybe there are common threads in all of them.
I have chosen to go as dark as I can given the fact that we have a 20 month old son together. It is hard and I, like you, sometimes wonder of pulling back this far will just greater increase the distance of someone wants to be free of you. At this point I am running on pure faith that it will work. Tonight I wanted to send a picture that I took of our dog standing over our son as he slept on the floor in a blanket. I know it would have touched her emotionally, but I dug deep and resisted. Soooooo hard.
Side note: before I found the books and this site, when I was über stressed, depressed and sad, I was putting the baby to sleep and completely blacked out and hit the floor, not unlike your W in the shower. Lack of sleep, not eating and an abundance of despair took a toll on my body. I am still down several pounds, but I am eating again and not passing out anymore. Your W was probably feeling the same.