I'm glad to see at least SOME honest information seems to be emerging. This gives us, at least, something to go on...
That said, AlwaysThinking, looking at it from JW's perspective...
IF her story is true, and she did drop BB off at the train station, and BB disappeared willingly, leaving JW hanging...
I can see where she'd be more than a bit angry with BB for putting her in that position, and lashing out. I mean, her life has been turned upside down, the entire world seems to be positive of her guilt, and she is under intense, ongoing, constant scrutiny from all BB's friends and probably LE.
I can see not being pleased with the person who put you in that position, especially if JW believes her to be alive. I can't imagine being too concerned with maintaining my friendship with said individual, should she ever come back.
I mean, if her story is at all true... how much consideration did BB pay her before thrusting her, unwillingly, into the public eye?
That said, if she is involved, or has been less than forthcoming with LE, then, of course, all of the scrutiny is warranted, and I don't feel bad for her...
but, if she is being honest, then I can see being quite angry with BB.