Hey Cheesey. I know what you mean about going dark. Nearly six weeks here and not a peep from H! It's actually benefiting me as I don't feel do anxious when I dont hear from him.
I think the way you are feeling is probably you detaching and that's good. I know you can't go completely dark because of D but your interactions with W when you do see her are pretty good. You might not realise but you are the lighthouse when you do this.
I think the question you need to ask yourself is what does letting go/moving forward look like to you? It might actually be no different to what you are doing now especially if you are not ready to date.
By the way I would be so annoyed if my H was still in bed till midday!
Me - 47 H - 45 D-16 M - 6 years Separated - May 16
Don't leave me behind can't you see me I'm shining... (Years & Years - 'Shine')