At this point, I would act as if everything with you is fine. Get back in the mentality of I'm fine if you want to leave.
For the time being, and especially since you two will not be around each other, let her decide, by her actions, where she is going with D or working on the M. If she's serious about working on the M, you might suggest (after talking to your L) that she see a counselor. But, and this is critical, she has to want to see a C. I also wonder if you guys could do MC sessions where you phone into them. Is that possible?
Ok, so you made a mistake. You're human. Just be really careful. Given your W's bitterness and actions, I just don't trust her. And I don't even know her. I would keep a very close eye (if you can) on whether contact with OM continues.
The others will probably have some more advice. Especially puppy, coach and greek. I will defer to them.
Just dial any expectations you have way, way down. No pursuit, beggin, pleading, any of that.
