I never said leave your husband. I said stop accepting his behaviour and invest time in yourself, because your situation has become toxic.

Sounds like you feel more obligated and guilted into taking care of him (due to your history) than anything else, but just because you choose to fulfill your obligation, doesn't mean you have to accept being ill-treated at the same time.

Your husband chose to accept a broken nose and who knows what else from you, maybe because he knew you were not thinking clearly at the time, or maybe he didn't mind you being vindictive and outright hostile.

Idk what his justification was... But.

You have to set your own boundaries, and not base them on what he put up with, last time I checked, marriage wasn't about keeping score. We are all different, with individual personalities, temperaments and limits. We have to set clear boundaries with these factors in mind.

Also, I'd ask my husband when and why he decided it was ok for me to be his emotional punching bag, when was the moment my feelings ceased to matter.
As I'm sure you know by now, communication is key in every relationship, and it may just be that he is angry at life and lashing out at you. Maybe it needs to be pointed out to him in a non-confrontational manner.

On the other hand; If he knows he's hurting you and simply doesn't care, then I honestly don't know how or why you do put up with this behaviour...
Because no amount of guilt or obligation is going to drain my self-respect.

Look, Idk the ins and outs of your husbands current condition, but honestly, if I were you, I'd cut out doing the things he can and should be doing for himself. Like taking his meds. If he's lucid and able, then there's no reason why he has to be forced/reminded.

Why? Because you said it yourself, you're spreading yourself way too thin, and there's really no point in putting on the dutiful wife hat if at the end of the the day all you feel is resentment while performing your wifely duty and an aweful sense of relief when its his time to go.

Like I said, use some of that energy on yourself