Hey needastrongone
I absolutely understand what you mean when you say 'I think maybe every cycle takes a little bit of my resilience away'. This is where I think its crucial you can find some coping mechanisms and outlets for when you feel you're on your knees with always having to be the strong one.
Have you had any counselling or therapy yourself? That could be something to look into, alongside a carers support group (Bipolar UK have listings, I think). I am also a carer (as well as being bipolar!), because I have a child with autism, so i am in a strangely double-edged position
. I haven't found talking therapies particularly useful from a bipolar POV, but as a carer, it has really helped at times to have someone to talk to, cry to, complain to, rage against etc when my caring responsibilities get on top.
Also, do you get time away from your DH and all caring responsibilities? Time to just relax and be free? I know that sounds like such a trite suggestion, but I really believe that giving your mind some regular time to 'play' and be free helps with stress levels. My DH goes to football without fail on a Saturday, and friends joke about me being a 'footie widow' etc, but he honestly needs that few hours each week where he can go and be with friends, have a few drinks and a bite to eat and chat, just relax his mind basically. Without that, I dont think he'd necessarily cope so well in the long term with my illness.
The 'unresolved anger issues' you mention sound familiar - I am sure this is very common in partners of people with serious mental health conditions. Your DH makes shit decisions when he isn't well e.g. not taking his meds and then you're supposed to pick up the pieces, right? Very tough. Again, counselling might help you process that. But I think its also about feeling you are allowed to be honest with your DH about your feelings, too (in calmer moments, when he can take on board what you're saying).
My DH has a lot of unresolved anger over he credit card debts I ran up when high, but the only way forward really has been for us to discuss things when I am well, so that he is really able to express how he feels and its not always about me and my feelings. We've also made practical plans together to try to ensure it doesn't happen again, so for example I dont have credit cards anymore and run any purchase over £100 by DH (not for 'permission', but discussion). It might be that he needs to consider allowing you more say in his medication, care plan etc. That can be hard to take on board for someone with bipolar disorder - giving up 'control' - but it might be necessary.
xx