Some people meet you after the explanation for your habits has disappeared.

Habits outlive their causes and new people meet only the habit. The way you handle money, or noise, or being late, made complete sense in circumstances that no longer exist and cannot be seen. What was an adaptation now looks like a personality trait, and there is nothing available to explain it.

Where a habit of yours puzzles someone close, one sentence of context usually helps enormously. And when someone else’s behaviour seems inexplicable, assume there was once a reason rather than concluding it is simply how they are. Most oddities are old solutions.