If this is right, it could explain some things. Because it shoots straight for the ideal, Fi could give out a pushy, self-righteous, "I know what is best for you" sort of vibe to Fe; and because it believes in allowing the ideal to refine/evolve/unfold naturally, Fe could exude a short-sighted, plodding, head-buried-in-the-sand sense to Fi. These are exaggerations to be sure, but are possibly revealling. In a way it could feel like Fi is attempting to force things in an unnatural and disruptive manner.
And as you said this works in a similar way with Ti-Te. So to take it further:
Fi/Ti - force the issue/ideal and let the resolution unfold
Fe/Te - force the resolution and let the issue/ideal unfold
Sorry, I've gone on a Ne bender here...