Chuck, I know I'm new in here, but I do hope things work between you and DH. My husband was also against marital counselling but he went, reluctantly. Once there, he was actually glad he went, because he found it easier to say things to me with a mediator than he did when it was just the two of us. We actually listened to each other rather than took the "I'm right, you're wrong" approach.
Our marriage did get worse and in July 2010, we decided to get a divorce. I saw this as my opportunity to be free and start over. We weren't divorcing on bad terms, but wanted to do it before it got to that point. I decided I wanted another child and with the help of a sperm donor, became pregnant shortly after. My husband was devastated. It turns out, just like me, he didn't actually want the divorce and had been looking into long-term marriage counselling for us because he wasn't ready to give up on our family. He wasn't ready to let us slip away, but I had done what I had done. We continued to live separately but we were both miserable without each other. Every weekend would be the same conversation...how hurt we were and why, how much we still loved each other and wanted our family back together. I had considered adoption, but he didn't want me to go that route, and I, deep down, didn't want to either.
It still kills him that my baby isn't biologically his, but he cares about her so much already, becoming involved in trying to name her and wanting to be present at her birth. He wants me to have a hospital birth given what happened with our son, but both my hospital birth experiences were negative and I want to give homebirth a shot. He already refers to her as his daughter and we're working very hard on our relationship. We're both making huge changes. We both saw huge flaws in each other that just annoyed the other, but neither of us were willing to change. We're improving our communication and things are so much better now.
I suppose the point I'm trying to make is not to give up yet. He may say he wants you out and you may feel that it's over, but it really may not be. Write him a letter. Sometimes that's the only way men will listen, and they do so without interrupting. It helps them to fully understand and see where you're coming from. Communication is key and yelling at each other and sitting at opposite ends of the couch, then cuddling in bed are not effective. Unless you communicate, through letter, verbally, etc, it'll all just get swept under the rug, to reemerge one day.
If things really do feel over, perhaps a trial separation, like what my husband and I did, might help. The shock of losing the person you love makes the heart desperate for the love back and is great motivation for change.
I wish you the best of luck.