Well, how does this factor into the fact that as far as I know, she plans to move out in May? And at last word D was well within option.
Often when the LBS removes all the pressure, then the WAS gets more friendly and chatty, it's not at all unusual. Heck my XW flat out told me early on that she thought if she treated me like crap then it would make me want a D too, but she felt bad because no matter how rude/ mean she was to me I repaid her with kindness. So she told me she wasn't going to do it anymore, and that she had only done it because she thought it would be best for me (isn't that rich!) And from that point on she was much more friendly. But she still wanted out. So don't read anything into it.