Hi FuddyDuddyLady,
Well....it sounds to me like the two of you need to go back to therapy together. Has he been looked into for anything? I just ask because I'm also Bipolar, but I also have Borderline Personality Disorder, and am wondering if maybe he shouldn't look into getting tested for something. His trust issues, are founded....but I think after seven years of staying with you...there should be a little more trust. Also...yes...the prostitute was dangerous. For so many reasons.
I also drink a bottle of wine everyday, and it freaks my husband out. I'm thinking of going to AA, because it also causes me to go manic sometimes....like yesterday in fact. I can see how he would be concerned with you drinking 20 diet cokes a day. That's a lot of soda. I don't think it's about the caffeine I think it's about seeing an overwhelming amount of soda cans around the house, or in the garbage. I used to drink caffeine free diet coke like that. OR switch to that and see what he says LOL!!!
If you're a writer...I say blog....go for it. Just try to be sensitive to the things he wants to be kept private. Try.
I would say he does have some control issues. But, you have stayed together this long, why quit now? Sounds like some old feelings are coming back up for the both of you, and I'm sorry to hear that.
Here's a book that both of you should read, "Living with someone who is living with Bipolar Disorder."
It will show you how scared he is all the time, and it will give him comfort that the wrongs you have done are due to a disease.
Hope you choose therapy.
__________________
Love, Forgive 
I'm writing in my blog again!
www.butterflyamongthorns.com
Bipolar II
Borderline Personality Disorder
OCD (Thoughts)
ADD (can't take meds for it)
PTSD
Cymbalta 90mg
Lamictol 200mg
Geodon 40mg
Xanax XR 1mg