The Bartonella rage has been / is an issue for me too...
There's times I could just strangle my husband - but now I know why I sometimes feel or behave extremely angry or crazy, and that realization helped a lot. I can't possibly give you advice on your relationship, I'm just writing down what I experienced. If I would have followed what I felt in the past, we would have been divorced since. The times I really had to fight that angry urge to yell at him 'leave, now!!!!' ...
Not only in marriage, also in traffic, or in other situations, I would swear and insult... Before I was diagnosed, husband made a remark on that...
You made it through benzo withdrawal, that's huge, you'll make it through this too !!