I've been dating fiancé for 4.5 years (2 years after separation and 7 months after D was final). My kids have been around fiancé and her kids for FOUR YEARS.
I have made a choice to spare my and X's children the drama of legal proceedings (for now). Counselor thinks my choice is "wise" and this is a tempest in a teacup. I opined I am getting tired of doing the right thing and getting screwed for my choice.
It didn't have to be this way. It really didn't.
"The answers are within you" (can't remember who). Unfortunately, so is the bullshit.