I think you're correct in some aspects. I think the reason we choose to change from a 10 year mono relationship in the first place is, that we both realized that we couldn't be everything for one another.
I believe that during this transition, we have put our old marriage to bed and in a way are starting over from scratch.
Mix that in with little a NRE and shake, and thats what we have here...
This is one of the hardest things I have ever done. However, I do believe the personal growth will be worth it in the end.
That really doesn't change how sad, yet hopeful, I am in the short term...