StrongJ, from all my reading and my personal experience, the hardest thing of all, and the most important, is to not care anymore. If you mean that, it means you can detach. You have to have the focus on you and maintaining your self respect and having her respect you. She can't have her cake and eat it too. You have to set boundaries that are healthy for you and then enforce them.
You don't necessarily have to give up on her finding her way back, but that can't be your mission. Your mission is to GAL, do your thing, and from a distance watch her actions. Don't engage her in her nonsense. And if she says something you feel is genuine, you can validate her on that point and then stop before you get sucked into an argument or letting her get her needs met from you. She fired you as her husband, don't keep providing those services for free.
H:54 W:46 D:11 D:21 M:12 BD:1/15 In-house Separation 2/15 DB started 7/15, W sees consistency 9/15 Dropping the rope and having her leave 2/16, moves 5/16 Reconciliation 1/17 Obviously still struggling