just got finished reading our thread...matches up to my situation by about 90%. We have no kids as well and i am going though almost exactly as you are for the same reasons (not enough emotion from me). I struggle with how to 180 in this situation as well because I find that playing it too distant while we are under the same roof can give my W the impression that she can easily move on without me.
As far asking asking her to go hiking, my heart would be telling me to go do it but i think you would be better off planning that activity with some other people...at least for now. Take my advice with a grain of salt though because i am asking similar questions on my thread.
