The first time might be a mistake. The second time is information.

A single event can be explained a hundred ways, and most of them are generous. Repetition removes the ambiguity, because the second time is a choice made with full knowledge of how the first one landed. What looked like an accident becomes a preference.

If something happens once, let it go without building a case. The second time, stop looking for an explanation and start adjusting what you expect. You do not have to announce the change, only stop being surprised by the same thing.