I feel the same way. My wife has filed but the pace is at a slow crawl. W and I are still on speaking terms and are cordial to each other during our drop offs of our son.
I try to detach with love and seem to make good progress but then W says something that I construe as a tiny sliver of hope and I start back at square one.
Me - 38 W-37 S6 M 10 years T 13yrs BD 3/18 W moves out 4/18 W files 7/18