Much of her "blaming" you for things is because of the OM.
If she had some valid points, then make sure they are corrected, but when she goes off and vents about how you can only think about yourself, it comes down to one thing - CONTROL!
She's trying to control you and your actions. She doesn't want to fess up to her own crimes and needs someone to be the scapegoat. Don't believe it. My W was the same way and said the same things until I told her enough was enough.
You can't assume blame for how your R went and anyway, your actions in no way excuse her for cheating. This is all part of the script.
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.