You didn’t need to see her to nail down a concrete time to tell the kids. That could easily be done with an email or two.
I understand your kids are older, but telling them so you have more people to talk to isn’t the healthiest of reasons. Also, please don’t use the kids as a tool to see her or attempt to shame her into coming back. I’m not saying you are or would, but the writing is on the wall IMO.
Last thing, you talk to her way much. You aren’t giving her an opportunity to miss you, or a reason too miss you. In the absolute simplest of terms, people want what they can’t have.
Me: 40 EX:37 Together 17 years Married 16 years 5 kids, 20,18,15,14,11