As Hopelandic brings out, an INFP is expressing via Ne, which means MANY possible actions & outcomes are seen, and the one which seems most appropriate to the Feeling is often chosen. One downside, is the INFP often chooses the most ideal, as opposed to the most realistic. Another downside is, the INFP is not speaking Fe language, which results in misinterpretation. FeSi doesn't know what to do with any approach that is not familiar, and FeNi seems paranoid in its interpretation at times, ready to assume the worst, and doesn't even let the action play out before jumping in and condemning it, inevitably making it bad. The readiness to form judgments too quickly is a real problem.
The Fe person also seems to think that their ONE way will affect the INFP as it does everyone else, but here again, there is something lost in translation, where the INFP just sees some seemingly phony one-size-fits-all approach that is devoid of deeper meaning, and it's almost insulting to our intelligence. Then the Fe-er gets mad that the INFP is not affected as everyone else is affected, and the INFP must not be "normal" to not feel & respond as everyone else does. In reality, the Fe-er has failed to really consider the effect of their actions in relation to the individual. At best, Ne allows an INFP to accommodate individual needs very well, to adjust the approach as they go. I think tertiary Si comes in handy here, as the trial-&-error is "documented" mentally and the INFP has patterns & experience to draw on instead of groping in the dark for the best approach. No doubt the Fe approach works well, and it's refined to suit as many as possible, but it seems there is far less adjusting for the individual. I do imagine Si & Ni aid in this for them, as well as in interpreting new approaches foreign to Fe protocol. Obviously, Fe people do adjust to individuals at times also, but it seems to take more time with the person, and they have to be more aware of not allowing first impressions to hold more weight than they should.