Hmm, well to give more context the outbursts the INFPs had were reserved for me. And gawd, there's no way to get to a girl's heart faster than to show them you feel "intimate" enough with them to throw a tantrum. L.O.L.
I'm not saying that I think INFPs as types routinely have loud public dramatic tantrums (like Veruca Salt from "Willy Wonka")
However, I absolutely have experienced and know that you can still be INFP and have a lot of tantrums/outbursts directed at or saved for a particular person or company.
I will also say from my dating experience that being a fellow NF and especially as an ENFP, there is a very close feeling of psychological and/or emotional space with an INFP/ENFP pairing that can happen which had a big part in how 'safe' or really how much in the end I saw of these INFP's otherwise hidden or inner emotional worlds and struggles. (Though I have to insert here what others have said about the nature of "fi", whether or not these INFPs tried to "hide" it, I knew something was up with them big time). This was not casual dating, I got to know both these INFPs very intimately and we were very close at one time. Normally these INFPs would shut down and close off and only explode under duress as or as a last resort. For both in some ways I pushed them to communicate with me and not shut me out, resulting in the outbursts. I also refused to coddle them sometimes and reward bad behavior which got more outbursts, ("I needed someone to make me feel better and you didn't blah blah blah blah")
Plus, I mentioned they were immature and/or troubled, right? Otherwise, they were textbook INFP when troubled, shutting down, falling off the map, getting very quiet, refusing to open up, terse passive-aggressive comments when asked, etc.
This is also why I told people about the last INFP woman I dated that as casual friends or whatnot she was fine and you would never experience the kind of behavior, the sides of herself that she showed me, or realize the extent of whatever it was she was going through. I got to know her much better in our dating run than many of her casual friends will ever know her.
Sooooo....does she sound more like an INFP to you know? LOL.
I can't help it - she's hella emo, she has outbursts and blows up, and you have to claim her, dammit! Just because you don't like it doesn't mean you get to kick her out of the club!
LOL, I know it almost sounds like I'm saying, "One of your clan hurt me! I demand blood money!" Buuuuuut, I'm not. But, for whatever reason, it does bother me that you don't believe either of them are INFPs!!
Seriously, I've seen it, I've experienced it, INFPs can definitely throw tantrums and blow up and not just in really isolated instances every several years.