you got it!
Yep, she knew the facts but she probably thinks she is The One, she will be able to change him, and she will learn the hard way that he isn't for changing but yes, none of your business fortunately!
My ex is slowly but surely ruining his relationship with DD too, I can imagine that it won't be too long before contact wanes but, rather than feel disappointed I am pleased, I'm pleased that she will be free of a toxic man (and his mother) and will grow up not having to experience any of his (or his mothers) crap. I feel sad for DD but I will more than make up for what she misses out on in not having him around. Patience, our children are going to grow into fantastic adults who can recognise the difference between healthy and toxic relationships, they are not going to have bad memories of their childhoods coming back to haunt them, that makes it all worthwhile.
I can relate to what you write Patience, I lost everything too, I have very little money, no job and live in a little council house but you know, I am so happy, I don't even buy lottery tickets because there is nothing about my life I would change. I treasure every single day and every single moment I spend with DD, being her mum is an absolute pleasure, she brings me so much joy and every time I see her beautiful smiling face or hear her laugh my heart swells with happiness, I have never been so pleased to have done anything as I am to have left The Ex. Life is full of colour again 
You are welcome re the chat, any time
xxx