I was married to a man for 17 years who I excused for his lack of learning about first, the medical problems that I had. Second, about what I experienced emotionally. During this marriage we had 2 daughters. Finally, when he was afraid I was going to file for divorce and was serious, he agreed to counseling. Then he missed 2 of 5 appointments. He forgot. Guess it wasnt very important to him.
He did not like counseling because it puts everything on the table. Its out there, and there is another person to witness the dynamics of what transpires in the relationship. A good therapist can see patterns and how each individual brings their own baggage to the table. Some people do not want to participate, because they do not want to open up their own stuff and fear being observed and having to own their actions. Which could lead to owning their own stuff and making changes. Some people fear this for a variety of reasons. But the bottom line is this-if you are important-they will do it regardless of the discomfort. Couples counseling is a road to becoming closer and truley intimate (not a sexual intimacy), but being able to stand naked in front of your partner and trust them with all of your emotions, thoughts, short comings, etc. If they cant do that, I do not believe that it is possible to have true intimacy.
As long as they do not participate, they can deny their own dysfuntion and lay it on their partner, calling them names and suggesting they are crazy. It is fear that prevents partners from going. I can tell you from my experience that the truth will always be twisted and over time, it becomes impossible to seperated who's problems is who's. It is like a vortex and will create more self doubt and erode self esteem.
When you really love someone, you will do just about anything for them, even if it means exposing your own thoughts and feelings to another. It can feel very exposing. It took me 17 years to know that this is not the kind of man that I want to be told I am loved by. I believe in putting your money where your mouth is. Talk is cheap. The more invested we become (through marriage, children, home ownership, all the other things that come with committment), the more difficult it is to resolve as seperation involves future of children, financial loss, attorney fees, feelings of failure, and so much more.
Personally, I would give an ultimatum if I had it to do over again. That would have happened before marriage, kids, mortgage. Counseling will either show that their is enough love and committment to work thru issues, but many times will make it clear that it cannot be worked out. I would rather know sooner than later.