I am like your friend in that I remember all these small “aside” details from random conversations/situations for years and years later, and I try my best not to do that thing you describe your friend doing because yeah, people really don’t like it… 😂

Can’t help what sticks in the brain though (it’s definitely not a choice, nor an obsession with any one individual), and it is good to have at least one or two people you can say these things to (maybe not the really embarrassing things), just because sometimes it’s nice to have confirmation that you are actually remembering all this stuff that really did happen/was said, and are not just imagining things or losing your mind lol