She wants to end the marriage, you dont, she is unhappy, quit counseling and you can't do this right or that right???? I agree with you, let her leave. Let her go where ever so she can figure it out. Why should you leave?
Does she work? Does she have a job? If she does not, then whats in this for you? What would your leaving mean? Financially and legally?
It sounds easy in the beginning but it may not be as easy as it seems.
I dont think you are being harsh at all. She is the one that wants the marriage to end and seems to have the issues that need dealing with. Yes there are always two sides but since she stopped counseling and may have issues then she should take care of them.
If she does not work, then financially it will create a situation for you that may be more complex then you thought.
you may want to seek legal guidance for that piece of this.