About her character, would you say she is an honest person? A hard working person? A considerate person? Was she a good parent (whatever that means)? Did she have strength of character? Is her unwillingness to cooperate about the kids just a view of who she really is.
During out Sep, I needed some boundaries with H, simple things like, let me know if you are coming to my house to take things out of the garage, please don't have our sons be delivery boys for you by bringing your stuff to you, let me know when you are coming to the house, don't just drop in. He agreed to them. If he hadn't, that would have told me a lot.
There is no way you can get her to do what she is unwilling or unable to do. Did she ignore your boundaries/needs during the M?
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss