She is hurting, (Hurt people hurt people) and desperately trying to find relief and will become frustrated when all these things she is trying are not working.
As far as the kids, in her mind the cabin lost pressure and she is putting that O2 mask on herself first before the kids as she was told ... its not intentional but yeah .. the LBS and the kids do suffer. I know my S did, W was always a wonderful mom... but not in crisis, that selfishness took over for a bit and currently she is still trying to fix that damage.
All you can do is love from a far, be the lighthouse