oh no i didnt see any disagreement
i think it may be easier in a classic case of say PND - where there is a clear beginning of a MH illness - or where the person is aboslutely fine then crashes...
i didnt leave the minute exP got depressed - i tried for years..
.he was depressed/anxious i would say from 2004...but he had had major issues form our ds' birth in 1996 when ds had SN...
his major breakdown/crisis occured in 2007 - he did go to his family from august 2007 to december 2007 and that was crucial for me in seeing a cousnellor and realising what my choices were....what i would "put up with", how much i could actually do for him, whether it made any difference...where it left the DCS and my own MH/stress...
i didnt truly leave til 2008 - partly as a result of realising some of the issues had been there all along, were personality/upbringing/abusive/controlling/whatever....separating what was true "illness" what was personality....
it is v. difficult - MH is not clear cut like a broken leg. there may not be clear beginning and end.
and if some of the behaviour turns out to be "personality" "behaviour" "ingrained" ...? that is what op can decide...
it boils down i think to whether the person takes responsibility for their MH issues or not. and sometimes you have to make a choice to care for your DCS or to care for the spouse.
farm out the dcs coz your spouse is having a breakdown - or farm out the spouse to profressionals or other relatives?
whether that is long term or just for next week...
ultimately my exP is managing just fine - he came out of his latest bout of depression at end 2009. he can get depressed with me or without me - and he can get better with me or without me - that much is clear!
he found support elsewhere -it didnt have to be me... and the DCs didnt have to support him/experience this bout in the same way.
if your spouse is loving, decent, fantastic person usually and this is just a pure bout of MH - yes of course you should support - but if it goes a bit beyond that (personality?) then might be different...
sorri rambling...