I think my wife is in MLC and it seems hopeless

[SBJ]

In mid-July, my wife told me that she was no longer in love with me and had not had any desire for me for years. This has led the last few months to be extremely crappy. At first she said it was just something in her head that she needed to work on. It has since morphed into her saying that there is never any way that she'd ever be intimate with me again. I'm no saint, but I do think that I'm a pretty good catch. We have been together for 25 years/married for 22+ (College Sweethearts) and have 3 amazing kids.

I know in my heart (because she will not admit to it) that she had an EA from April to mid-July. This guy was a new family friend and she justified their friendship by telling when they spoke...I just didn't realize how much until I pulled phone records. Over the 3 months they had lunch a few times and went for coffee a few times, but always told me when she did. I didn't like it very much, but wanted to seem like I trusted her...which I did...it was him that I had reservations of. Hindsight being what it is, I'd never do that again, but I now find myself fighting for my family. She says she wants out and there is nothing I can do to change her mind. We are seeing a MC, but I think they are just divorce facilitators instead of helpers. Totally Lost...