From what I have read. I think first you need to stop telling your WW you want to save the marriage. She knows. Just start validating and staying outbof her way. Give her time. Your wounds are fresh, so I dont think you are as detached as you think you are.
Now it's time for you to also stop apologizing for what you have done wrong. You have already told her. You are going down a different path now. A path to a better you.
Your wife seems ver confused. You cant help her through this. Its time to save yourself. If and when she is ready she will find her way back. You have to completely let go.
M:37 W:37 T:11 M:10 S17, S13, S10, S4 BD:06/28/17 OM confirmed 07/20/17 Recon the M 10/29/17 Working hard:2gether
Onward and forward
This process is not a sprint it's a marathon! Patience, Patience, Patience.