Sorry this may be long. Partner of 25yrs has decided to leave. Son is 15yrs and he wants to just tell the children the we have grown apart rubbish. I told him not to insult the older childs intelligence and know his family will talk (think thin walls, mean can not be heard) and won't respect a request to not to talk of things when children there. And I do not want them find things out this way. The truth is that he has been lying, gaslighting, silent treatment and seeing others for a long time. He won't tell me how long, any real info. For context, I would say we need to talk about us, he said i want this, this and this. Big London job, away from home. I didn't trust him and whenever I brought anything suspect up with him, he would lie his way out of it. Stopped sleeping with me and says now, well we weren't in a relationship. So why did he lie all this time for then. Except of course he did as I was doing everything and is trying to now claim that my doing it all, hasn't contributed to his big wage!! The older child sees how he treats me and how do you gently tell them what their Dad has done without making you look bitter but don't want to lie to child either?