I think that might be the same problem I'm having with my STBXW...I just want to get on with my life. I've made the decision to divorce and now I want to get it done. It's just the way I am. When I make up my mind, I forge ahead. My H knows this and I think that's why when I started talking to him about it, he freaked out. He knows it's not an "if" now but "when".
She's the one who started the whole thing, and has been pushing me to "give up hope", "let go", "move on", and such. She's the one who keeps insisting that things can't get better and divorce is the only option. And yet, in the almost 8 months since, she hasn't made a single concrete effort to finish what she started, or even to prepare for it.
The minimum separation time in Illinois is 6 months, if you both sign a waiver. It took me almost that long to finish my roller coaster ride, and now I'm where you're at... I've made up my mind, and I want it done and finished. I think it's taken her off guard.