25yearsmlc, I hope you don't think I am being too defensive.
It is hard to work out with written communications how things are intended to be received. I also appreciate that I am not the best at communicating things in writing, without spending DAYS on it first, time which I don't have! Also, I know it takes time to get used to peoples writing styles, tones and personalities which can be hard to convey on a forum, without all accompanying body language.
I appreciate all comments and do take things on board, even if I don't appear to at the time!
It is a decision he has already made. It's about clarity for the kids, because they don't understand what is going on. (They know only that he stays "with a friend" not OW)
I must also clarify this. I am not meaning I want DH to confess to the kids about OW. But to explain that he wants to leave the family home. I haven't a clue about when one would discuss a third party, but certainly now or near future is NOT the time!