Prior to this was the plan mediation? I would calmly let your W know due to her new proposed plan you no longer will be participating in mediation and any future proposals should be handled between the attnys.

Her asking for more money to support her overseas jaunts WITH your children is unacceptable.

I can relate to being a wreck after receiving a proposal that is nothing short of ridiculous. While it is more costly at this juncture you need a very skilled attny to fight for your rights as reasoning with her will not be productive.