Hey Morgain. =)
In response to your rep comment, according to Beebe's model Fe plays an "Opposing" role to Fi in I*FPs. So basically it tends to undermine our Fi judgements by worrying about what other people will think of them.
I think being a social type on the enneagram plays a big part in it too, because our primary motivation is "Shame", so we have a tendency to worry about what people are really saying about us.