Also the Fe could be poorly developed because when the Ni sent a signal (early in life) to the Fe and the Fe brought it out to the peeps, the peeps didn't respond too well. This makes the INFJ think that the reason you use Fe is to KEEP PEOPLE FROM KNOWING WHAT YOU ARE REALLY THINKING instead of INTERFACE WITH THE PEEPS TO GET YOUR Ni all the way out to the Se. The Fe is suppossed to do this.
"INFJs in particular, who need others' encouragement and approval to establish a positive self-image, struggle with feelings of alienation, and they often develope an ironic sense of humor that protects them from self-revelation and assures them of positive relationships. INTJs do this also, but they're not as reluctant to ask questions ans summarily reject the answers."
"[contrasting Ni & Ne]...ENPs are most visible in the first blush of discovery, when they're excited and optimistic. They aggressively seek feedback from the people around them, and they welcome others' involvement in formulating their Intuitions and carrying out their plans.
Seriously, this is exactly what I envy the most toward ENFPs. INFJs tend to seek approval from others through waiting; on the other hand, ENFPs are good at seeking approval by actively working on it through various ways.