IMO you need to start confronting a few things. You say you don't want to confront the OM. Fine.
Now you want to keep running away from talking to your W because you think she's going to talk about the D.
The brutal reality is that she has another man, so why would she want you right now? Start tackling things head on, on YOUR terms. Come up with the plan of what you want in the event of a D and have that ready to go.
Fact is that unless you start showing her that you're a man who is not going to sit back and take what she gives you, nothing will change. She's already committed the biggest sign of disrespect for you. Going out with OM. It doesn't matter what the reason is, it means that she doesn't respect you. Period.
Start BEING the man. How do you want to live your life if you were single? Write all that down.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.