MI: If no contact is working, then keep doing it. Your mutual friend said it: she is confused and overwhelmed. Those are signs that she is still in turmoil about what is going on, so I'd say that going dim/dark is having an effect.
Tell me: in better times in the past, who would be the first one to initiate contact? If it was your W, then I'd say a very brief message to her about nothing consequential would be a 180 on your part, right? If you were the one to usually initiate, then sit pat and keep working on yourself and detaching.
Hang in there: it does get easier.
Me40 WAW37 M18 T20 S18,14 D13 EA Bomb 6/08 Sep 11/20/08 Ret 08/09 Sep/Filed 11/09