It’s an extremely common aspect of human psychology to make up a story to explain the results of an event or reasoning for your actions after the fact.

It’s even been demonstrated in specific cases in studies of people who’ve received brain hemisphere bifurcation to prevent grand mal seizures.

The side of the brain responsible for speech is not shown information or things the individual must complete, then when asked why they performed such an action, the speech responsible side of the brain will spontaneously make up a resonable sounding story to explain it.

I highly recommend checking it out. It’s an absolutely fascinating look into human psychology

I’m sure I do this same thing all the time subconsiously, and I’ve certainly noticed it in others.