He claims he will get a less demanding job (less money as well)
Well, he'd better get his CV dusted off and sorted out then and have that in place ready for when you get to final hearing. He needs to be making those adjustments long before you get to the settlement stage.
You can't stop him doing that, of course, but until he does it - there's little point in entertaining that threat.
Maybe I'll be unlucky and she'll LOVE family life...?! Thats my fear.
Well then she can have her own children, can't she? Your kids aren't to be used to 'try out' family life. Your children are people in their own right, not a social experiment. The children's needs come first, second and third in divorce. Their welfare is paramount. There's nothing you've written so far that makes anyone believe your children will be better off brought up by a woman with the values of a thief.
He is used to getting his own way...he hates being told what to do
Then "his decision to divorce devastates you, and relieves him but the act of divorce will devastate him and relieve you".
He'd better start getting used to the idea. Divorce sucks for everyone. He's going to have to get used to the laws, common sense, and the fact that you're on your own now - so you get to have your own point of view, make your own decisions and have your own independent thoughts. If yours is anything like mine, you getting on with your own life (fake it til you make it), will send him apoplectic with rage.
Good!
My attitude is: Any suffering that he is feeling, he has inflicted on himself. He sacked me. I find it nice to know that he's having a difficult time too, and besides, I'm too busy dealing with the consequences of his decision to worry about his issues on top of mine. His choice means just that: his responsibility.
I know just how dreadful you are feeling. One day at a time is the order of the day. I didn't stop yearning for him to 'see sense' for three months, just so you know. However, I'm a staunch believer of the "No-Contact" approach: the less I know about him, the easier it is to not care. I also recognise that my "He can just fuck off" attitude means that sometimes, my STBXH has escalated his awful behaviour in trying to provoke me in to a reaction. BUT I'm in month 4 now, and truly learning to just not care. I still have some very, very sad days - but I'm fighting for my future now: not his, not ours.
It also helps that first hand, having been to court once already (for periodical payments), I can say that all his threats, his 'acts of generosity' and all his directives "You must move out of your home into a caravan" have been total bluster, base-less, and completely unforthcoming.
So far the only thing he got that he's wanted is the decision to divorce. It's gone rapidly down hill for him since...
As I say: Good.
I found "Detach and Survive" and "Runaway Husbands" two very useful reads. Also "Family Law Made Simple" to explain what happens in the divorce process.
And as for your last post about what he says: he will say anything to maximise your hurt, make you responsible for his actions, blame you for the sky being blue and the cowpat in the field.
If he was the epitome of truth: him having affair wouldn't have been such a dirty little secret for so long.
I think you can safely believe that anything he says is bullshit.