CACS,
I'm a BS who has been reading along with your thread, but haven't commented before.
I wanted to tell you this-- it really wasn't until I let go of my marriage completely that I could think about saving it. I had WS move out, to a property we own only about 5 minutes away... We created a co-parenting plan for our 3 small children and we separated in every sense of the word. I didn't track his whereabouts-- didn't care to, and I didn't worry about what work he was or wasn't doing in IC. I didn't worry or obsess over if he was seeing OW or how he was spending his time when I had the kids. I simply claimed my life back as mine, and I started working on my own future and the future of my children. I didn't file for divorce (per advice of an attny) for reasons that don't matter here, but that's the direction in which I was heading. I gave up, because I couldn't see recourse, I couldn't see how I'd ever respect myself again if I stayed, and I couldn't see the light at the end of that tunnel. I could see happiness again, but not with WS.
After the separation, after I totally let go, 2 things happened. The first-- WS dove into IC and working on himself in ways he hadn't before. He had been trying to do the work, but something about the "pressure" being off of him allowed him to go much deeper and to make much more significant progress in a short amount of time. Was it the threat of losing his family? Maybe, but I think he was pretty convinced he'd already lost us. It really seemed like the pressure of doing every thing right with no missteps somehow kept him too tense to dig deep. With that pressure valve turned down, the looking inward was able to intensify. [I'm NOT saying this ideal, just that this is how it went for us].
The second thing was that as the BS, I actually started to heal. Without the constant worry and obsessing about his affair and about what I would do , I had the space to think about healing and my future differently. Don't get me wrong-- I still thought about the affair and the betrayal A LOT. But I had space for other things, too.
I could see myself being happy again, and I could see that while this situation shattered me, I had grown immensely as a person in the midst of this mess. Slowly, my anger/hurt decreased.
We both remained on our parallel tracks, updating the other and chatting occasionally (again, we have 3 small children, and were VERY committed to co-parenting well) about "us." With time, I began to see reconciliation as a possibility again. And now, after 7 months of separation, I committed to R.
I tell you this just to say-- I think him wanting to keep living together is a sign of hope. It turns out I didn't need the divorce paperwork signed, but I DID need the assumption of divorce. I needed the steps to get there and the co-parenting agreement and the SPACE from the tracking and obsessing. I didn't just need to be willing to lose the marriage to save it, I DID need to lose the marriage to save it.
It may not be the typical path to R, but for me and WS, and for our children, it may have saved our family.
I think joint IC sessions and open lines of communication are the way to go. Even if it ends in D and in you two eventually choosing to move on without the other, my guess is it won't feel as suffocating or excruciating to both of you as it has these last few months. Best of luck in your continued growth!