Well, your faith in human nature (or the supernatural core of human nature, perhaps) is inspirational, but she has shown no glimmer of angelhood.
I'm one of the many men that isn't dating, let alone marrying, women like her any more. Which is why a lot of women my age are already condemned to live out their existence with two cats and a library card -- which is all the better for the children they didn't have.
The true loser in this is the child, a child that she clearly does not love, but instead values as an object with which to punish her hated ex. (No idea whether the ex's feelings towards the kid are any different, but with a mother like this, the child was born doomed). The child, I'll pray for. The mother, you can pray for. Mom probably needs it worse but I'm not that good a Christian.
d.o.l.
Criminal Number 18F
You're wise. People of either sex who are bitter and still emotionally wracked by divorce should not be dating.