Ok so I scanned through your entire thread and am even more confused now. Early on you agreed she was most likely having an affair. To the point you even knew who it was with. Now your stating you know she's not having an affair.
As for MC it is very common for WW to try MC to say they have tried anything. Nobody files for divorce and then goes to MC to work on their marriage.
Sounds like you try new things and they don't work you so you try something else. When you get to this point it is consist strong actions that equals progress.
I'm not sure if based on some of the things you posted that you are naive or delusional. You claim your not a "nice guy" but an alpha male. An alpha male would never chase a woman who is rejecting him.