American culture has developed a curious habit of turning ordinary life into pathology. Shyness becomes social anxiety. Stress is labeled trauma. Sadness is quickly upgraded to depression. And now — right in time for Valentine’s Day — being single has joined the list. Being single isn’t a diagnosis. It’s just a relationship status. Single people are often treated as if they’re suffering from a condition that requires attention. Friends worry. Family members whisper. Acquaintances try to help.