Hey Luke. I totally get that it's hard to hear that she isn't attracted to you. Who the heck wants to hear that cr@p, right?
You keep comparing yourself to the OM. The truth is that the affair, while it felt personal, had nothing to do with you. He just happened to be in good shape. That wasn't the attraction. Trust me on that.
Her crisis led her to someone that was willing to have an affair with a married woman. Someone as broken as she was, so, you need to let the whole ab comparison thing go because he cant hold a candle to the man you are, sweetie.
She has a lot of face when it comes to you. It's a whole lot of stuff to get past and it's going to take time.
You do best to leave her to it as much as you can.