She texted last night and apologized for coping poorly and said she would for sure go in on Monday. I didn't text anything back except to tell her we got her son to his dad's house for the weekend. I decided not to interact with her. Her son will return Sunday evening so I doubt that we'll see her at least until then.
If she comes home on Sunday evening saying that she will go the next day to rehab we will let her stay the night but will tell her if she leaves during the night she cannot come back. And if she doesn't finish rehab she cannot come back to live here.
My husband and I are going to enjoy a quiet weekend and invited friend over for supper tonight. Things we don't normally get a chance to do. I have to admit, we are both lost when our great grandson is gone for this long. It's like he is our purpose in life right now. I know it's not how it's supposed to be but we are bonded with him and he with us. I noticed yesterday he had a better day than usual without his mom around since Wednesday. I think he has anxiety when she's here because as soon as he sees her with the purse or keys he starts freaking out. But he knows we will always be here. He was excited to be going to his dad's for the weekend and if our granddaughter cannot step up to parent him and his dad and his wife continue to be appropriate then maybe they can step up and do most of the parenting.