The last day and my MIL........

[gja1000]

I think you are so right to just be "done with her". Some people just aren't worth the time or effort. She's a bitter, sour old woman and nothing will change that now. It is sad for your children, but she is the loser - it sounds like your children are doing just fine as it is. The lesson is to learn from her mistakes and do not make them, as I know you won't.