Blimey, I spend one evening working instead of faffing about online important Mumsnet perusing, and it's all gorn off!!!! 
Bertie, happy birthday. I am sure you can't wait to see the back of this one, but do enjoy your weekend celebration with friends. And everyone is right, he's pushing as hard as he can against you to see how far he can get. He's a FW through and through. Throw him to the solicitors, you've done all you can, they can take him to court and demonstrate that he refused to stick to what was agreed in mediation and a v dim view will be taken of that, I'm sure.
Leclerc, sounds like a good, positive move for you. I found that the ADs just enabled me to go back to functioning - no massive happiness rush (because my situation was still mince) but I could get through the day and speak to people, do normal tasks and not be on the verge of throwing myself onto the floor all the time. Hopefully they'll do something similar for you - although the chemicals themselves probably wont kick in for a week or two, the fact that you are doing something positive for yourself could have a lifting effect on your mood anyway. As will the swimming - go for it!
Doing - am thinking of you, hope you can get him back to work soon and get your own work going - your plan to get out (or get him out).
Matchsticks - much as I hate to say it (because I hate cooking and will always jump at the chance of dinner from other means), I think he's deliberately luring you to stay for food (ie making more on purpose). Resist and eat at home!!!!
Maggie, I might just have to do a Britney vair soon if these little crawly buggers don't absent themselves from my life!!!!! Loving the idea of you incognito!! 
Noone - I like Fireworks too, it makes my inexplicably leak!!!!
Fi - that all sounds really, really hard going with DD. You seem to have much more cavernous reservoirs of patience than me. But look after yourself too, my lovely.
Had a lovely lunch today with my friend, ate teeny sarnies and lots and lots of cakes and sat for nearly 4hrs just gassing! We righted the wrongs in her life and mine (agreed I'm absolutely not to email my friend's brother... which I knew really but was half entertaining...!!). Lovely!!!! And my first day of a decent amount of work for ages. So although it's kept me up till 11pm doing work (and will probably do the same tomorrow night), I don't mind really, it's a nice change from sitting worrying at everything in my head all evening.
On that note, g'nite all (and hello to Breath, who seems to be keeping owlish hours in her new life as fabulous flying away fairy!).