You can't get through to them this way. Drop the rope. Live your best life. If she comes back it will be because she sees you as independent and strong and interesting, not as clinging or accusatory. (Although I'm still not sure why you want her back.)
It doesn't sound like anything you did was marriage breaking. Normal people not having an affair go to marriage counseling to iron out stuff like this.
Yeah that's just it. If she is having an affair, I do not want her back. If she is having just MLC and the Roy stuff is circumstantial and non romantic/sexual then I would be interested in reconciling but from what I understand MLC lasts a long time and I don't have years to wait.
Although given her comments about "I started feeling this way 2 years ago" perhaps she could possibly be deeper into it now. Who knows? MLC is a real thing but it is not a technical diagnosis (although the depression that drives it is) so not much research on this -- we just have shared case studies-- which can be helpful.