Thank you everyone for your empathy. I have calmed down a bit now and will have an early night and tomorrow I will STFU.
I've also just been reading about (UK) child maintenance rates just to get an idea of the legals. There's a whole lot of useful information about separation and how to handle it.
M: 57 / EW: 52 T: 21, M: 8 S: 18, S: 15 Bomb: 1 Jun 14 EA Aug 2014 I think PA Feb 2015 possibly sooner