If Fi wants to be appreciated, it needs to give the proper meaning behind its actions. Fe becomes much more reasonable if it knows that my taking the time to listen to a problem is an expression of a deep caring.
In the same way, Fi needs to seek deeper meaning behind an action of an Fe user. If I know your birthday is important to you, it pings on my value of what a friendship is, and I no longer view it as a stupid social more, but something that is meaningful to my dear friend.
This is very true! In fact, better understanding of the needs of Fi vs Fe is the singular most important thing I've learned via MBTI. It was a very difficult concept for me to wrap my mind around, but once I did I finally am able to understand why some of my friendships turned out the way they did. I can also understand that someone's need to get me to express how I feel isn't an attempt to threaten my core values.Or maybe the friendships are viewed at one level by one party and another by the other and they think they're on the same page but they're not.