I am in a similar position as you - a week away (less!) from legal separation. H knows my view on things, so now I will leave the ball in his court. If we go through with it, then that is OK too. I know that nagging him, manipulating him, pleading with or reminding him will NOT work!
Let's face it, even a D or legal separation, costly and uncomfortable as it is, is not the end. It may just be a milestone, of even a new beginning. Whatever. We'll be OK, sometime soon, maybe even now!
Livnlearn
"The unexamined life is not worth living" - Socrates