The vibe I've been getting from all the confirmed IEE ENFps on this site is that they're the chillest people alive who don't give a shit if a Chicxulub blows their asses to high hell. And I've heard a lot of Ne-centric circlejerks bitching about how Introverted Sensors are too rigid and quick to anger and that Extroverted Sensors are shallow plastics.
From my observations, Se hits you with eternal antimatter explosions, Ne is a wormy blobby floating slug in a vacuum, Ti is a douche but a fair douche who plays by the rules, and Fi is a bitch but will love you if you're the underdog.
Fi-types are the more prone to taking insults personally,
ESPECIALLY when their Te is strong. Fe-types will take issue if you're consistently doing something they deem inappropriate but they'll by friendly with you when you stop doing it.
It's called a
Merry vs. Serious dichotomy. Serious types use Fi/Te and Merry types use Fe/Ti
(order of function does not matter, only preference.)