...when an Fi thinks the Fe user is "lecturing to make me feel bad" or "butting in when not necessary" and basically taking control of a situation or citing something an Fi has done (or not) as rude or thoughtless. The Fi gets hurt, offended, angry because there was no *negative motive* or intent and doesn't understand why the Fe is maligning their character.
The act probably can be construed as rude or thoughtless from an objective observer viewpoint but the clash comes really only when the Fi user cannot and refuses to acknowledge there is any merit in the Fe accusation/interpretation of events. The Fi response is "I did not MEAN to do it, therefore you are WRONG and you have no right to tell me that was wrong". Then the Fi irritation/hurt overrides objective analysis of the situation and it just becomes cats and dogs. If the ENFP does budge a little, they will have justification why, in spite of the act potentially being rude/wrong/uncalled for, that they were "allowed" to do so for some extenuating circumstance or other x/y/z reason.
CzeCze, I think you did a great job of fleshing out an aspect of the Fe - Fi dynamic.

But I was hoping you'd be able to expound upon a few other things for me... This post is also my attempt to respond (though long overdue) to Fidelia's earlier question about how Fe user's might better react once they realized they had tread upon Fi values.
So CzeCze, how would you (you're an ENFJ, right? This is my memory from reading your posts on other threads on this forum. If I'm wrong, let me apologize in advance).... How would you suggest that the Fi user respond to an Fe criticism differently from the dynamic you so aptly described above?
Why do I ask this? I ask because I don't see any other way to respond to some Fe criticisms while remaining true to my Fi values. And, I would really like to come up with another response because my default Fi response doesn't seem to get me anywhere with Fe dominant / auxiliary users (viz. INFJs and ENFJs).
I feel like I've only recently begun to get my head around Fe, so I'm still percolating on all this. But from my Fi side of the table, it seems to me that while Fi and Fe have things in common, they also seem to be (partially) irreconcilable. I don't see this a personal failing of either the Fe or Fi user. Instead, I see it as a natural outcome of two conflicting value systems.
Perhaps this analogy will better explain:
I think there is analogy with the insurmountable differences I see between Biblical literalists and secular humanists and Fe and Fi users. I live in the Southeastern United States where evangelical Christianity is alive and well. Many of these earnest and well-meaning Christians in my community feel morally compelled - nay, they feel a God-given mandate - to proselytize. In other words, they do this with the best of intentions. From their perspective, anyone who doesn't believe as they do will burn in Hell for eternity. Thus, when they point out to the non-believer the errors in their understanding, they are helping others. Furthermore, the truth of their position seems self-evident. Anyone who hands you a tract on the street is likely to believe that if only the tract recipient were to read the Bible, then he/she would automatically be swayed. Said in another way the truth seems self-evident... to the point that it almost seems unfathomable that anyone would read the same Biblical text and come to a different conclusion.
Back to the analogy with Fi/Fe users. The problem is that I don't read, nor do I interpret, the Bible in the same way these earnest and well-meaning proselytizers do. So in my mind they have no authority to argue their position.
God knows I sometimes deserve a profound and severe rebuke. But
when an Fe user reproaches me (justified or not), they do so based on an authority I do not recognize. Let me give you this concrete example:
A couple of weeks of go, I made a post in the INFJ Common Issues forum (click
here to see this post) which raised quite the sh*tstorm. In particular, Fidelia responded as follows:
...that first section of your post is likely to get most INFJ's hackles up... I don't like to be short with people or disrespectful to them. You should know though that your approach was disrespectful and rude and it won't win INFJs over to your way of doing things, even if that's how you really, really feel is the best way to fly... You cannot glibly tell someone that their basic nature (along with values that are very important to them) are flawed and they need to completely change and adopt your way of doing things and expect they will happily accept your verdict. You obviously have not taken time to understand why some of those things are a Big Deal.
Well, it's hard to summarize in one paragraph the 100-150 posts that ensued after our clash. (BTW, Fidelia and I eventually found a common ground.) But one of my most profound takeaways from this incident is that if an Fi user doesn't recognize an Fe user's moral authority, then there is little/nothing the Fe user can do to get the Fi user to change their ways.
So aren't such clashes between Fe and Fi users almost preordained because Fe and Fi users do not recognize each others' moral authority? I think of one of my favorite scenes from TNT's The Closer (which is one of my favorite TV shows):
Will Pope: What do I have to do to make you agree with me?
Brenda Leigh Johnson: Stop being wrong.
For me, Fi is about what is Right (with a capital R). It transcends social norms. Let me repeat this because this is the heart of the matter. Fi for me is about finding the essence of Rightness. This is the primordial Right that social norms grew out of, but they are only a reflection of the principles that I seek to guide my behavior. I try to make the most moral choices possible. And I guess I feel that social norms are rather limiting when compared with the bigger principles at stake.
About 10 days ago (and a full week after our clash on the INFJ Common Issues forum) Fidelia earnestly and graciously asked me what she could do when she tread upon Fi values. I've been percolating on this answer for 10 days... and I still don't have a good response for Fidelia... which has been driving me crazy, because my Fi was so impressed that she would ask such a question about how to better communicate with Fi users....

But I'm completely at a loss about how answer her.
I would love it, CzeCze, Fidelia, or other forum members, to propose some alternatives to the befuddled Fi user. I humbly admit that I haven't been able to come up with an alternative myself.