midwife- your DH, you're still married right? Is there any possibility he could be trying to appease you into staying married to him, rather than seeking a divorce, if he is trying to protect his financial assets? (cynical)
sounds so utterly difficult for you. I'm sure you loved him before all this.. and true love probably never truly goes away (which is why, I think, that it is so hard to leave or part ways when you're at your stage of 'what do I do what do I do, someone tell me what to do' because you are so conflicted)
P ended up demanding £20 (!) every day to look after DS - his own son- which I paid, on top of paying our full London rent, all food, bills, etc, as I had to or DS wouldn't have been fed. It was chaos.
I only felt relief when I finally left. It's easy to fuzzy out the bad bits espec if you ar emarried with children. But think for yourself and what is best for you.
What does he get out of staying together (well, sounds like cake and eating it) and what do you get out of it (not a lot of help, not an equitable financial share, and does he make you happy or keep you on edge). you are in a very demanding job that is very high stress, you need support behind you. do you rely on him for a lot of childcare? I was in that position and felt trapped between rock and hard place.
A breakdown is no laughing matter but the additional paranoia is of course deeply troubling. If he needs time out, and if he is stil blaming you sometimes, I'd say get out. But then again I make the worst of decisions. Of course there is all that 'sick role' theory too..
would you be able to separate again, and reevaluate in perhaps a year's time? sounds a lot, but it's only now, a year down the line, that P and I are on speaking terms (he is still horrendous, but it has taken him this long to come out of his alcoholic stupor and utter madness and become a person again)