Excuse me V - but you are missing a few marbles I think - if you are both there at the same time a)go up to her ask if she minds you sitting with the family, b)ask her when she is going or call her when you are going to see about meeting there, c) continue to co-exist awkwardly in front of the K and whole world. Excellent opportunity on the spot or in advance.
I would check on whether she filed or not and I certainly would let her know that things seem turned around- can we talk about where we are going or what comes next?
And if I come on too strong just holler back at me - I can take it.
You can tell I am much in favor of talking things out in the open or at least let the other person what's on my mind and allow them to consider a response then or later. You are sooooo expecting a bad outcome. Think about what you would do if you were positive.
Perhaps ask if you can schedule MC to discuss next step.