Sounds to me that you have said everything that needed to be said so if she doesn't want to talk to you then stop contacting her.
Just out of curiosity, why would you be trying to win her back if she isn't even denying OM at this point?
Because I love the f***ing sh** out of her, and there are things that I just crave saying to her -- things that maybe weren't made clear in the past, things that hadn't been said yet, things that I just crave reiterating. It also doesn't seem to matter what I do. So, at this point, I just am kind of doing what feels good. I do censor myself some. Some things sound whiny to me. So, I don't send them. I started around her birthday, a couple weeks ago, sending her texts about every day. I never get a response, and never expect one. I did plenty of no contact before that. That seemed to be doing more harm than good, helping her forget me. My step mom said that if she dumped a guy and he made no contact, she'd think he didn't care, and she would just keep going. Maybe she doesn't really know what she truly would do. Maybe no contact would pull her back. But when they leave for someone else, it doesn't seem that no contact is going to pull them back. They have no reason to go back, if they have a person out there to grab hold of, most likely. See, my wife complained throughout our relationship, mostly in the later years, about not getting enough of my attention, and not doing enough things with me. So, I don't know; it seems bad to do no contact with someone that craved your attention, and left because they weren't getting enough of it. I just try this and that, looking for results. That's what I've been doing the whole time, since she dropped the bomb. The only results I ever appeared to get were from giving her attention. I never seemed to get good results from no contact. I only seemed to get more distance. It had to be the right attention, though. Attention that made her mad was the worst thing in the world, because she feeds off of anger, to do the very difficult and terrible things she has done.
So, she is still sleeping with the OM and yet you still keep pushing and pushing and pushing. Why? This "I love the f***ing sh** out of her" reason is, well, ridiculous. Look, she DOES NOT LOVE YOU and SHE DOES NOT CARE FOR YOU. When are you going to let that sink in?
The question is, at what point and price do you pay to soul/self worth/dignity/etc for all of this? Good grief, grow a spine and stop this. It's doing nothing but bringing you further down the rabbit hole of despair, which you reek of.
We have said over and over and over but yet you still keep doing the same thing. Either you are a troll or really need help on yourself, and if its the help, then seek it. But leave your "wife" alone. Period.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.