Not sure I'm in any place to tell you about setting boundaries...my W and kids are 2000 miles away...
I would not put up with being bad-mouthed to my kids, nor will I ever bad mouth my W to them. They love us both, and we love them, and nothing should ever be said that could cause them to question that.
BITS M: 35 W: 35 T14, M11 D9, S6 ILYBINILY: June 09 Unofficially Separated (long distance): 1/2/11 W came home: 3/17/11 EE: July 2012 Dropped the rope: Oct 2012 Piecing: April 2013 Not piecing: April 2014 Stuck.