MMM1919 -- sorry you're suffering but glad you found this forum.
It seems like your H's bipolar disorder is the lynch pin to this whole situation. This is probably obvious but if you suggest anything to him, it should just be all about him getting better, nothing else. I would suggest working on the R until he's on effective treatment.
And of course even more urgent than that is for YOU to be in a decent place. You can't help him if you're not well.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final