My ex, who is herself trained as a therapist, suggested we start going to couples counseling. I agreed immediately since my attempts to be heard had failedI wasn't sure I was hearing what I needed to hear and I felt we needed an objective third party to hear and play it back for us. We started.
We lasted 3 (yes, three, tres, drei) sessions before the ex missed a session, and within a week I had to call and cancel the next couples' session since she broke up with me!
So yes, I heartily agree with "6 months of couples counseling", if you can make it that far ;-)
Or you can take the myriad longer and more painful routes.