Fe and Fi are supposed to be in conflict with each other. Fe is about harmony over strict values and authenticity and Fi about values and authenticity over harmony.
Yet I know, both by having read type descriptions and knowing them in real life, that INFJs, despite of being Fe sec, are all about true feelings. One INFJ (woman), for example, has told me that what she says or writes usually comes straight from her heart with no "proof-reading".
This makes Fe of the INFJ sound more like Fi to me. What is it that I am not seeing here? Or is it just that the INFJ's seek for harmony comes straight from the heart as well so that what comes from there is already biased by Fe?