@SleeplessInEngland
It isn't easy but remember that telling your children that one of their parents is awful will be internalised by them. Wait it out and they'll have perspective.
I definitely agree that slagging him off in anger is a complete No no.
But if a woman is asked why we haven't this, or can't do that, I think she can answer in a truthful age appropriate way without anger.
I don't think it is right that the children are shielded from the reality of the fact that their mother pays for most of their lives and their father contributes a small amount and they have to live with that amount.
You can do that without anger.
A pure statement of fact that if kids are 10+, they can understand.
My school friends father walked out for another woman when she was 12 and despite her teacher mother doing her best it was a different life for them financially.
He stayed with the OW for 10 years until she dumped him within 18 months of whe he developed arthritis.
His OW's children were never that to him as they loved their own Dad, so they didn't stay in touch.
He then started reaching out to his 3 original children for support.
My school friend and her siblings were 20-25 and busy with their own lives and never allowed him back into their lives, he was kept at a distance.
Polite, kind, friendly, but absolutely at a distance.
He wasn't there for them except one night a forthnight for several years throughout their teens and less again in their late teens.
They were used to not seeing him and had no interest in their busy 20's to make extra space now he suddenly had time.
He ended up in a nursing for many years because of his arthritis before his death.
I don't think for a second that would have happened with his first wife.
Her three children are very successful professionally, adored her, and she was at the very centre of all their lives with her grandchildren, right up to her death.
She never ever said a bad word about her ex husband, but she did explain the new financial reality to her children.
She refused to feel guilt and shame for something that was not within her control.