Walk away Wife having affair

[Hurt06]

How do you deal with a WAW that refuses to communicate even just regarding the children? Any opportunity we have to discuss school, kids counseling, weekends, even who will pick up the kids today, she attempts to draw me into a huge argument. I explain that we need to step away from the children and have a calm conversation and she just refuses and continues to try and escalate the situation in front of the kids. I calmly say if you want to talk to me in a calm way I will be here but I will not argue with you in front of the kids and quietly walk to where the kids cannot here us. She of course never follows and nothing gets resolved. Its a daily battle.

Anyone else see this type of behavior? How can I just establish basic communication so that we can get through each day peacefully?