Wow! What ball$ she must have to tell you that you're to blame for her A. Ridiculous stuff!
Well, at least from this you can tell she hasn't done any work on herself and taken zero accountability for her actions. It's actually quite repulsive. I don't know if you feel that but I imagine my W doing that and that's how I would feel.
She's still in her fantasy stage and let her be.
You got you and your two lovely boys. Keep on being the stellar parent that you are and take good care of yourself. You can hold your head up high through all of this.