Living together and seeing each other each day just reminds me what I'm losing in terms of the marriage and how my life is changing. Under these conditions it's hard emotionally to go from "here's my W" to "here's my soon to be ex-W". So I still react or feel anxiety with all the interaction as if she is my W.
It would be much easier if we were physically separated. I wouldn't then have constant reminders, and I would be able to move on better to a new life.
I imagine my W also feels similarly, but her reaction seems to be more resentment towards me. Of course, how would I know since we don't talk much about any of this.
I do think once we're separated, we will have a good co-parenting relationship.
