Do you say "bless you" when someone sneezes? How do you feel if someone doesn't say it?

My first serious boyfriend loved me very much but never said ”(god) bless you” when I sneezed. I read an article in some teen magazine years ago and it talked about how if someone doesn’t say anything when you sneeze, it was telling of their personality, how they feel about you, and how they lack thoughtfulness. How do you feel about this? Do you think it is fair to pass judgment on someones if they don’t say bless you, or if they do?