Yes, talk to your children. Just don't fool yourself into thinking you are doing something for the kids (like calling to say good-night)when the truth is that you want to talk to W.
There are many threads here on the board where it's obvious the H is using his kids to get to his W.....but he doesn't see it.
As old as your children are, you should be able to tell them to expect a call at a certain time, or better yet...let them call you. That keeps the W out of it all together.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!