Typical behavior ... She is projecting her stuff onto you, you handled it well by not taking the bait.
Some moments like that are a good time for some truth darts, I once had a similar situation and I calmly asked my son what my passcode was (this was to show how open I was) ... I punched it in, handed her my phone and walked away. Only issue I honestly had was her looking at the history and finding this place (I don't think she knows how to do that nor what browser on my phone I use for this site... Still a gamble) but more concerned she was going to chuck the iPhone (new and no insurance) into a wall since I called her bluff and it pi$$ed her off.
Truth darts can be helpful if done calmly and deliberately just to call them on their absurd chit
Your GALs have her spinning, and note she is all to aware you still want to reconcile ... So keep your trap shut about that ... There will be a point she has to feel loss, and it looks like she is processing what is going to happen but the gravity of the situation has not set in... Stay PMA and stay the course
