Sorry didn't get a chance to reply yesterday. Once again thanks for your responses (I seem to start every post with that).
Perfectstorm - As ever a lot of good advice and very diplomatic, you'd make a good negotiator. Ever though about a career in Counselling? Weekends away aren't really affordable, we couldn't 'comfortably' afford to run two households. In a worst case scenario I'd be moving into a bedsit/shared house and it would be a struggle, but doable. While still maintaining the family home.
Babysitting is also a bit of a problem, DW doesn't really trust the various Agencies that provide babysitting services and we don't have much support from family so there's a limit to the amount of "us" time we can get. It is pretty limited to being at home for the date nights. It's something that we could both make an effort with a bit more though.
Xollob - That's an interesting experiment, I'm not going to try it if that's okay. Partly because I couldn't manage it physically or mentally, and partly because it would raise a few suspicions at home! However, I don't think you really intended me to do it, it was more to illustrate what DW has gone through and on that point it was a success. I have been lacking empathy.
Xenadog - Yes that's a pretty good description of the thread. Simplistic? Yes, but accurate. I haven't written a letter, but I think it could be an option when I've learnt a bit more about how to communicate without judgement.
Mumtosome - What you said really worries me, and harks back to what Cog said earlier in the thread. The last thing I want to do is let DW apportion blame, especially when it seems I'm the party at fault (if anyone and it isn't simply incompatability) and I can pretty much guarantee she'd blame herself. I don't think I'd have a problem being discredited after the failure of a relationship on the basis of lack of sex, but there's no way on earth I'd want to scuttle any chance of future happiness for DW.
Depression has been mentioned on this thread and previous ones, but again it comes back to the lack of communication. I don't know if she's depressed, and I don't know if she'd want to seek help if she was, I wouldn't know where to begin helping her.
Anyway, this thread does seem to be going round in circles a wee bit so I'll probably start drawing a few conclusions:
First off, I'm not going to speak/write to DW without getting some help myself with communication first, probably counselling from relate on my own. I don't think talking about it the way I have been trying to has been helpful and I'm worried writing it down will produce the same result - fear and distress and self blame.
Secondly - It has only been a few years, others have gone decades in these kind of cricumstances, so I figure if they've been strong why can't I? I'm going to revisit my marriage vows and try to dig up some of my own personal integrity to stick to them. I've been shamed into doing that at least by some posts on this thread!
I've got a few book recommendations from this thread, and the whole of MN is an invaluable resource so I'll keep looking here and learn from other peoples expereinces before jumping to any more conclusions! I've really got to stop over analysing stuff and being defensive, that'll be the projection stuff again!