But I disagree that the not fighting for her is B.S. Four months with no contact? I'd figure my STB-ex was done too. I believe she was being honest with you on how she felt. There's nothing wrong with someone having a different perspective than you. In fact, that's the definition of perspective. I'm sure you didn't go no contact for no reason. It's just one of the risks of DB'g and going dark.
Now she knows. Now she can make her decision. And you can go forward guilt-free.