She honestly didn't realize that taking a child to meet some guy off the internet was wrong, I tried to explain it and she honestly just didn't get it! And she still ended up choosing the guy over looking after DD who she left with my brother. It just feels that nothing is important to her other than herself.
The compromize is a really good idea actually as I don't want to stop her having a relationship with DD buy just want to be sure she is stable (for lack of better word) before I let her stay overnight again. Thanks so much for your advice, If she really wants to see her granddaughter id hope that she would be happy to compromise. I think im seeing her at some stage today so I'll see what she says. I can imagine that no matter what I say she will just be offended but then it will be her loss I guess!