Just posted on your thread but thanks for stopping by. Yes - it sounds like our Ws are doing many similar things. I hadn't really thought about the use of email as a way to avoid intimacy, but I suppose you're right. My W didn't like to discuss things at work, but wouldn't take time from her schoolwork in the evenings.
I very much hear you on the issue of W never being satisfied. My W always seemed to have these things she needed to prove. I would support her in those, but they always seemed to take their toll on our time together and I got a little tired of it. In a way she seemed to be running from herself by challenging herself. She wasn't happy being who she was, but seemed to need to constantly recreate that. Strange.
I've had the best moments within a relationship as well - I like to share things, experiences. And intimate conversation and understanding is something I place a high value on. That said, I am fine by myself. Trying to get back into the groove anyway.
keep taking care of yourself. It really does get better.