Fidelia you hit the mark. I mean patience with the other person. More specifically, I mean patience during the early phase of the relationship when I already know that I like them, but they need however long to figure out if its reciprocated. I have often scared off girls that I pursue too vigorously before they have made up their mind about me.
I personally love to listen to other people vent about their issues. And I think one of the greatest pleasures of a deep relationship for me would be having the opportunity for someone else to tell me everything about themselves.The biggest thing you can do to make an INFJ happy is be willing to listen to them vent (and in doing so you are bleeding off the emotional excess they are feeling so they can get on with problem solving - so you are actually performing a great service in getting on with the process) and also wanting to understand them. INFJs are very forgiving and pretty good at considering your interests, needs and points of view.
I may not have the patience I need yet, but I'll listen, understand, and try to change myself if that's whats needed unto the ends of the Earth.