I'm trying to find a balance between what I know and what it would be ethical for me to say, and what I think I could speculate with reasonable accuracy.That's what is was asking: If there were PMs sort of going along with the progression of that thread in Mary's case.
Needless to say i would desire more than the answer you have given, but obviously it wouldn't be useful for me to push you towards speculating on that datum.
Honestly, the only way for you to know is to ask her yourself and accept that she might not choose to reply.