Yup, I would just shake my head and not try to understand it! It just won't work.
I just visited my AD after more than a year of her telling us we were dead to her and she did not want us in her or grandbaby's life. Her eyes were so dilated. I could have put on my make-up in the reflection! lol
All she talked about the whole time was how great she was doing and how she didn't need to use drugs or drink anymore because of "how great she was doing". It was such an oversell that I could see right through it. The main thing is that She could NOT so there was no reason to even dispute it. She just wouldn't "get it".
This codie kept her mouth shut and used the opportunity to spend a little time with my granddaughter.
Until your AD can "get it"; it really doesn't matter if anyone else does.