Wow - thank you for all your kind and thoughtful responses. In one way I am glad I am not the only one, though sad for everyone else who is going through the same thing.
I am 42 and my dh is 55. We have always had a very up and down relationship but we used to be a lot closer. Over the years but especially since having our children (now 5, 7 and 9) our relationship has steadily deteriorated. I have done my fair share of damage to it as well and would be willing to talk about this, but what I find very difficult about dh is his critical, negative, sarcastic and blaming nature. He also has a short temper. It is scary to talk to him in the sense that I know I will come away from the "conversation" feeling worse about myself and upset, so I shy away from bringing up sensitive issues. He has had two major episodes of not talking to me following big arguments in the last 4 years (one was about 8 weeks long, the other about 5 or 6 weeks) and both times I managed to get him out of this behaviour (after putting up with it for ages in the hope that ignoring it would make it go away!!!). I think that he is not talking to me at the moment as our normal pattern is that we are quite civil during the week, but he becomes very negative, sarcastic etc.... at the weekends complaining about everything that I should be doing, haven't done etc... to the point that I withdraw and simply wait for Monday when my life can resume. However, he appears not to be talking to me much during the week at the moment either (following an argument about 2 or 3 weeks ago) but I have to say that this time I don't feel the same angst as the last two times, just a general sense of WTF??? and hopelessness (also I had what has turned out to be an I think/hope unfounded health scare during this time so I couldn't really be bothered to analyse why he might not be talking blah blah it all becomes so boring).
Anyway I am going on and on... I think he might well be depressed as certainly he has a difficult work life and has to deal with debt. I think there are a lot of improvements I could make to our life as well as him but what makes me baulk at the prospect is how domineering/bossy he can be (though also has a nice affectionate side which the kids mainly see) - just not sure if I want to be part of this set up anymore.
It is reassuring to know I need to understand why I am burying my head in the sand in your opinion CactusRash because I had been doing just that - stressing myself out thinking I am generally crap because I cannot get up the courage to talk to him.
YummyHoney, do you then think that my dh must not love me (and I won't be at all upset if you say yes).