There is a specific kind of gut-punch that did not really exist a generation ago, and now it happens all the time. You open your phone and there it is. The group you used to be part of, on a trip you were not invited to. Everyone smiling. Everyone tagged. And you, finding out about it from the outside like a stranger. It stings. It stings even more if you are pretty sure you did not do anything wrong. And it stings in a confusing way if some quiet part of you also knows you w