In my opinion your wife is trying to manipulate everyone involved with the situation. I would go for the marriage counseling no matter what her reasons are. I would not look deeply at the reasons she gives. She's willing to go, then good. Go. You will be able to judge her openness to the process when you see her do it. If the counseling is effective, so much the better.
I have no doubt she gives different reasons for what she does to each person she talks to. As to whether or not she will file, just wait and see. You're not doing it for her. So if she does and she follows through, then she does. And if she doesn't. The same. She is unpredictable and operating on conflicting emotion. When the wind is from the east she does one thing, and when it's from the west she does another. Don't get too caught up in it. As soon as she sees you want something, she will change it.
