Hi everyone and @Thehouseofmarvels if you haven't found this 
And thank you everyone for your support - I feel very lucky and I can't believe I'm on thread number two and people are still following.
I think I mentioned it a while back, but in case anyone missed it, 'Superman' came directly from a mumsnet member 
@Sssloou Yes, I agree. He's not going to listen to me anyway so it's most definitely out of my hands. It's so weird. When I see him at the kid's sports and stuff and we talk normally, I can see the old DH. And now I can allow myself to think of home more, I am remembering the good times and think that there is some feeling there. But his behaviour has been outrageous and his denials... that I'm not sure, even if he agreed to all move back tomorrow, I could ever relax with him or see him in the same way again.
He's in complete denial that DC are genuinely homesick despite both of them clearly telling a trained child mediator and family lawyer that they preferred England. And it's my fault. Obviously.
This is his reaction to me telling him about DD sobbing all night on Sunday and having to collect her from school crying on Monday:
DN also had a tough last year of primary school. Next year will be different. The poor kids feel terrible for you. Of course they are going to say England. Yes they miss London. But you are not helping and you are supposed to be the adult.
He's negating their feelings like he has mine, and he risks alienating them. DD has already told me that 'Daddy doesn't understand'.
DS was crying this morning because he misses Weetabix! The ones here are not the same...
@Vodkacranberryplease pretty much true except that he doesn't even have the 20%. Apparently it wasn't going to be an immediate thing. Not that he told me or our friends that all the times he boasted about how good life was going to be. Verbatim: 'Mum wants to retire so I'm going to join DB running the business, and we are going to share it 50:50. I don't need to put anything in because DB is so happy that I am joining.' LA BIL isn't due to have a share of the business as far as I know (but WTF do I know?!)
He claims to have calmed down on the drinking because hearing the birthday night recordings shocked him. But who knows...?
I've just remembered something quite interesting from the original mediation - he told her that his older brother has apologised to him and feels he is partly to blame for all this mess, but DH told him not to be silly. No doubt he told him it's my fault, but obviously he wouldn't have said this to the mediator as he was on top arse-licking form.
I'll take that though. At least one member of the family has acknowledged their part in it - it's a start.
Sorry, this is a random jumble of updates plonked into a post!