Surely, the unvaccinated friend is at far more risk from you hubbie than he (and also you) are from him.
I know an elderly lady who refuses vaccination. Not really sure of reason, she is not into conspiracy theories, but just feels her own immune system will be strong enough. I think she is foolish, and taking an unneccesary risk - but that really is her problem. I cannot see how socialising with her is putting me at any more risk than socialising with anyone who is vaccinated.
I know so many people now - all fully vaccinated who are testing positive, particularly those who, either at home or at work are around children. However, thanks to their vaccinations, none of them have been very ill with it. I fear for this lady if she gets infected.
Do think we are all getting rather paranoid about this. Horrible virus, causing many problems and sickness, but - fortunately, not a great killer and with vaccinations, even less so.
Do people spend other years avoiding meeting up with people who have bad colds, etc? Yes, I know this can be worse, but we have rather been trained to be extremely fearful over the past couple of years.