Thanks for your comments. Yeah, the "do not touch" zone for some reason really was upsetting me yesterday. It's particularly hard when we actually are having an enjoyable time to have that part missing. I totally identified with the "being able to smell" the other person part. I guess it's so naturally associated with being physically close to the partner.
You're right on about the part of the partner not communicating their hurt / concerns...this is definitely true of my W. I'm not responsible for that part of things, which in my view is a pretty significant contributor to the difficulties.
I'm looking into a couple of groups that I can connect with re: some hobbies/sports I do, more for the social aspect. I feel terribly lonely and isolated and not very good at making friends, so this is something I really need to work at building for myself. It's really hard for me to do; I feel like my world is so pathetic in this regard to that of my W. Anyway, so I've taken a couple of action steps there, and will be pushing myself to connect more.
Good job on the guitar! I play a little, sometimes helps me to relax a bit.