I admit I did an asshole thing: it was my friends birthday and I deliberately did not send a bday message. Two of my birthdays have passed, in which neither year he acknowledged it at all. Them, late in the day, I changed my mind. Sent a Happy Birthday text to him. He responded that it made his day and that I was the first person to remember and even say Happy Birthday to him. So I learned that he went literally the entire day without anyone reaching out. This is someone who has a few hundred connections on social media. I’m going to make the assumption that when my next bday comes up, I probably won’t hear from him again.