I spoke to a counsellor for pretty much 2 years; at first he was an enormous help. He is very pro-marriage, and also understood about cult-like organisations that got hold of people (at first I thought that that was what was involved.... I really didn't get MLC then).
He was extremely helpful even strategically in the beginning. And he was good at dealing with my total and absolute panic for a long, long time. I was a basket case for 2 years, basically.
He, too, felt that if he could just talk to H he could convince him that the way he was heading wasn't the right way, that the problem was a lack of communication, and that if we learned that we would see that it could all be worked out.
H spoke to him, even liked him, but in the end didn't listen. The C became extremely disillusioned with H; said that he had never met anyone with less empathy, that he had serious character flaws, etc.
The C began encouraging me to look elsewhere, all sorts of things. Because of that I seriously considered it.
It's pretty much what Sharon said, he said that yes, he was pro-marriage, but where was H's commitment? Where was H's admission that he had done wrong?
This C was better than most; he often told me that H was doing the best he could in many situations, and he also pointed out repeatedly where I had to change my thinking. He was right in those situations, mostly.
But we reached the end of the line; he didn't accept MLC, although he did accept the idea of all sorts of crises, he still thinks that H should just come home and stop being silly, but I haven't spoken to him for a year or so, and don't plan to.
I know there are counsellors out there who do get MLC, however it seems to me that they also get tired, that they have their methods and if it doesn't respond to their method they don't necessarily look for another one. Mine did try lots of things, but still.
Just my experience; I still think IC is a good idea for us in many cases, but it is also important to know when to stop or to find someone else.