I feel for you, I really do. Especially can relate to the being together for so long and detaching being very difficult.
I'm no expert, but her comments about finding someone else and not being able to trust you if you got back together sure sound like guilt statements. Perhaps that means there's a part of her that's ashamed and knows this is wrong? That might be hope in itself, that some part of her is feeling it. If she was totally indifferent that'd be worse, I think. Again I'm no expert.
Me: 40 W: 40 22 Years together, 14 Married D8 + D7 Aug 2012 - Separated Sep / Oct - Back Together May 2014 - WAW / Divorce Bomb / Separation Jun/Jul - Suspected Other man / Confirmed Now - WAW moving out