I've posted before about my situation but the basic are:
Me and DH exw used to get on but she started to be unpleasant and we fall out. This has happened a few times as tried to make things work but they simply don't.
Me and DH have a baby. His ex is pregnant. SS wants all the other children to get together but me and DH have agreed that involving both sets of grown ups just doesn't work and things will be easier keeping to ourselves. Friends we have spoken to agree.
I still feel so angry about so much crap she has directed to us that I am worried I have become almost obsessed and bitter. I really want to break this cycle and I can't. Would be much better just to say shit happens let's forget and move on but I still feel upset.