The friend who warned you and didn’t say “I told you so” afterwards? Keep them forever.

Passing up the chance to be proved right is harder than it sounds, especially after being ignored. Somebody who skips it has decided that you feeling stupid is worse than them getting the moment. It also means you can go back to them next time, which is exactly what the gloating version destroys. A warning is only useful from a person you are not dreading returning to.

Keep that friend close and tell them why. When you are the one who called it, swallow the remark. Ask what they need now, because being right is worth less than being someone people come back to.