My logic is simple. If you're worried about getting sick from a disease, get vaccinated for it. If you're worried about spreading it, isolate or wear a mask. If you're worried about spreading it to anyone in particular, encourage them to get a vaccine as well. If for some reason they can't, then you need to be especially careful around them. If they simply don't want a shot, then it's on them (not you) if they get sick.
In short, protect yourself and do your best to help those about whom you care. Let everyone else make their own decisions in life and deal with their own consequences.