Thank you to those who have replied already. I think I will benefit from being part of this community.
1) Should I say anything to speed up the S? From what I am hearing, there's a good chance she won't see her need to change, or come anywhere close to wanting to reconcile, until S happens. On the other hand, I don't want her to say in the future that we mutually agreed to separate. Next time she brings it up, If I were to say something like, "Well, if this is what you want, then we need to figure out how to make it work financially and with the kids," then that would definitely put us on the S fast track.
2) If S occurs, what in the world do we/I/she tell our D(5)? Our S is 1 and 1/2 and won't understand anything right now. But our D is so precious to us both and I don't want her to think I am abandoning her. That thought tears me apart.
_________________________ Me: 37 W: 37 M: 11 D:5 S:2 IDLYA, W removed rings, BD 07/13 EA/Fantasy (PA?) confirmed 12/13 W moved out 05/14