Birthday alone
Even if your Facebook feed is usually a pretty quiet place, the one time you can generally expect to get some social media love is on your birthday. Old schoolmates and Great Aunt Brenda come out of the woodwork to send you balloon emojis and wish you much cake and a happy day.
Unless you’re this guy, who obviously expected the above situation, and got nothing. No wishes at all is a bit sad unless he did actually receive some love, just not as much as he was hoping for. Facebook is the home of passive-aggressive comments, after all.