INFJs have a tendency to look for hidden motives and meanings in every situation and often over analyze problems, or rehash issues after they have been settled.
INFJs are very independent, focused and persistent people who often characteristically, possess uncompromising integrity.
They are driven by an inner vision; if that vision is at odds with others, it typically causes serious conflict. They can be quite determined ,single minded, and unyielding as they stand by their moral positions.
When engaged in an emotional argument , it can be difficult for the INFJ to put thier own feelings aside, and really hear others.
When an impasse is reached, they tend to withdraw from the other and stop communicating.
This is the last thing the INFJ really wants. However interestingly enough, INFJs have the tendency to be somewhat judgmental, so INFJs who dislike this quality in themselves may be particularly sensitive to this in others.
From "Just my Type" Page 295.. INFJ relationship frustrations.