Hello, I didn't know my husband had another wife.......LOL!  Because you have discribed my husband exactly.  It is very draining dealing with a bipolar spouse (I've been married almost 19 yrs) and my husband was recently diagnosed as bipolar II, he is on meds and at first they seemed to help but his "dark moods" seem even darker.  When he's like this (which is now) I ask "what can I do for you"  his response yesterday was "leave me alone" so that is what I'm doing.  What else can I do?  Everything I've read says don't take the bipolar syptoms personal so that is what I keep telling myself, it's hard but hopefully it will get easier.   Good Luck.