when in stress, an INFJ may often see threats in the relationship, that may be grains of sand, but which the INFJ will hyperbolize into mountain ranges. this happens with both INFJs and INTJs. in stress, all INxJs can get stuck in the grip of their inferior extroverted sensing, which Roger Pierman in "i'm not crazy i'm just not you",describes in the following terms:
"extroverted sensing has the natural strength of collecting evidence from the environment - people, things and places.
the fluid experience of information enables those using extroverted sensing to describe experiences well.
but in its compensatory form, extroverted sensing leads to incorrect deductions from a single fact,
at times a simple smell can lead to the catastrophic conclusion that a relationship is over.
there is no step-by-step logic leading to the conclusion; it is as if the conclusion already existed and merely required the observation of a random fact to allow it to be arrived at."
ordinarily very good at connection observations to illuminate deeper meaning, when stressed it may be very difficult to get an INFJ to reexamine their trusted insight, as they may simply find new random facts to validate their perspective.