CW I think you are getting to a good place for you emotionally. Regarding the kids, it was impossible for me not to show any emotion when H told them he was considering moving out. I got teary. I also made it clear to the kids this was their Dad's choice, not mine. I don't think there is anything wrong with that. My H told me later that conversation with the kids was one of the turning points for him to reconsider leaving.

You can do this!