Jean, I'm sorry you and your husband are having troubles communicating.
For what it's worth, from what I've seen being a CD is no guarantee that someone is more in touch with their feelings, etc.
I think Karren has some good advice. Something else to consider is whether your husband is an introvert -- not in the sense of being shy, but someone (like me) who needs to process things internally before responding, and often extroverts (who to us introverts seemed to just blurt everything out) don't wait long enough to give them a chance to reply, which leaves both sides feeling frustrated.
I'd also suggest you read Norah Vincent's "Self-Made Man," which talks about her experiment of posing as a man for 18 months. While I don't think her insights profound to someone who grew up male, they seemed fairly revelatory to her (and a number of other woman judging by interviews I saw with her) -- and one of the things she talks about is the difference between the way men and women often communicate. (If you want to know more about the book, I've got a
review on my blog.)
Also you might try writing down a letter(s) to you husband about the things you're trying to work out, and asking him to do the same. If he's feeling overwhelmed, it'll will give him more time to process and respond.
I don't know the nature of the problems you're working through, but if you know he's hit tilt after 30-60 minutes maybe it's worth trying to break down the issues into that can be tackled in that timeframe. I realize that you feel like that a piecemeal approach, but if you agree to do it on a regular basis, maybe you can make some headway.
Finally, it's worth being aware of the difference between a failure to communication vs. a fundamental disagreement. (You know you've reached the latter, when one person can restate the other's position in way that the second position agrees accurately reflects.) When you've got a failure to communicate, continuing to explain your position can help. When it's a fundamental disagreement that usually only worsens the argument. Then it's time to change the discussion to whether the disagreement can -- or can't -- be dealt with by negotiating (usually by looking at the point of disagreement as one only within a larger set of issues can create room for horse-trading).
Good luck!