Do you do breathing stuff?
Lately I've been digging bee breath, or bhramari pranayama. Basically, just hum/buzz on slow exhales. Sometimes other breathing techniques, like box breathing, leave my mind too open to wild thoughts and distractions getting in. Bee breath is just enough extra for me to focus on so I can keep the other thoughts at bay. Playing around with different pitches and buzziness is kinda fun too.
Well, I would certainly expect any adult human, not just one I'm in a relationship with, to call for medical aid if they see someone having a stroke. That's basically what first aid for a stroke is; get medical help. I don't think that requires any special training, just not being an asshole.
So expanding upon relationship expectations then: don't be a reckless dumbass and don't be an asshole.