A familiar friendship can hold a new disappointment without turning it into an old pattern immediately.

Long friendships come with a filing system. A fresh letdown gets sorted instantly into a category you already keep, and then you are no longer responding to what happened but to every earlier time it happened. The history is real, and it can still be the wrong lens for a particular Tuesday.

When an old friend disappoints you this week, describe just the incident to yourself, with no reference to the pattern. Ask what you would think if a newer friend had done it, and start from there.