I am glad to hear that the new job is going really well for you and that you're enjoying it.
A word about informing the kids this weekend, you would want to be true and authentic with yourself. What I mean by that is that you do not have to go along with the charade of "we are parting amicably, friends...blah, blah." I think it would be real if you share with your kids that you love Mommy and are sad about this...would prefer that all stay together in the house.
The biggest emphasis you would want to make to the kids that both of you dearly love them and that this isn't their fault at all.
Don't let W railroad you and spin out her own narrative when talking with them.
