As a WAW, when my husband started to detach it was confusing. It was also encouraging for me because I didn't want to hurt him ... I just wanted to stop being hurt.
There was/is some anger and resentment that only now, after I asked him to leave, is he willing to change. I know that many LBS didn't see it coming but I imagine a lot of WAS tried like hell to communicate how bad the relationship felt for them. In my case I was going to move out in July (found an apartment and discussed it with my husband). We separated the following March (after over a year of marriage counseling).
Just today I remembered how, the last 2 days he was in the house, he would touch me and talk to me again. That really confused the heck out of me - it was as though he had to sign a lease and start moving things to a new apartment in order to be willing to touch my shoulder or waist on his own. To be honest, it broke my heart that my emotional pain had to reach such extremes before he would change.
And for some WAS, it feels safer to get angry than to feel hurt and abandoned. So that may be what you are picking up on, anger to mask hurt and pain.
I think/hope I'm past that resentment portion - but this journey is full of ups and downs so it might pop up again.
