Two weeks ago my H of 17 years walked out following a two minute conversation about how he " just wasn't feeling it."
I am really not coping on anything but a very minimal level, it has taken a Herculean force of will to keep it together for my DC, particularly when coupled with various other ongoing stresses and if it wasn't for the support of my friends and family I honestly think I might have broken by now, and, frankly, still fear I'm on the brink of doing so. Have been to the Docs (sobbing throughout my appointment) and she helpfully suggested seeing a solicitor or the CAB. Because I hadn't thought of that 
I feel constantly sick and on edge, have lost a stone in weight, and my head is just a mess. He left us before, 18 months ago (totally out of the blue) and following extensive counselling we got back together. I just feel so incredibly, pathetically stupid to have taken him back, so gullible to have thought things were okay, only for him to do this. Again. Not just to me but to our poor DC.
As well as facing the horrific emotional turmoil he's caused I am utterly financially shafted having been a SAHM / trailing spouse for over a decade now. I've supported him in progressing from a low paid manual job to earning a six figure salary because I thought it would be beneficial to us all, but clearly the DC and I are now surplus to requirements and he has already set up a new account in his sole name so I can do nothing but wait and see what scraps he deigns to toss us. Despite him being a high earner assets will be fairly negligible as he has a spending habit to match and has run up a significant amount of credit card debt.
If anyone could offer practical advice, stories of how they've been through a similar nightmare and come out the other side, or even just a handhold I'd be eternally grateful. I honestly can't begin to see how I'll ever get through this 