Lupatria, that sounds awful. He actually put his new lady friend before his own child 
I have a partner of over ten years. He was separated from his wife years before he met me. They lived apart and his son lived with the mother. He still supported them financially as if they were still married, partly because he did not want trouble and partly because he was lazy.
At the end of every month just before he got paid again she emptied his bank account so there was nothing left in it.
When he met me, she turned into a monster and blamed me for the marriage break up.
He had to open a new bank account to stop her from withdrawing all the money each month and started to pay her maintenance util the divorce came through.
In all these years we have never met. She has said the most terrible things about me to his mum and his brothers, and none of them believe any of it.
I eventually met his son who is a credit to his parents. I'm friendly with him, and I think he genuinely likes me.
When it was his graduation, it was never even muted that I would go. Why would I? They are his parents. I got to see the photos and he looked great. That was enough for me.
Now she wants to meet me, and says it's all water under the bridge. It may be for her, but not for me. I like the status quo the way it is, and I'm glad his son has not had to witness any trouble.
Your ex-husband sounds like a right plonker 
Swimming pool was more like a talking pool!
Les Liasons Dangereuses National Theatre film
Hundreds of illegal migrants to be put in existing military barracks


,I met someone who, on our second date, suggested we go to dinner with his soon to be ex wife and her boyfriend - who just happened to be his best friend.