It may be helpful to use the role of Fe (emotional expressiveness, emotional environments) in your romantic relationships to figure it out.
For Te/Fi valuers, consistency between Fi input (verbal explanations of the status of the relationship) and actions is important, but Fe input (emotional expressiveness) is not.
Fi dominants are Fe ignoring, so the only connection between Fe and Fi for Te/Fi rationals is that the Te dominant may use Fe too much when they're not getting enough Fi. The Fi dominant is then like, "ew, what's all this Fe nonsense?" and, realizing that the Te dominant is feeling insecure, simply tells them that everything is fine. The Te dominant can believe this coming from a Fi dominant because what they say never changes, and their day to day actions (not emotional expressiveness) back up what they're saying.
As for Te creatives, how exactly are they of all types supposed to depend on Fe to know that the Fi is okay? The only connection between Fe and Fi for Te/Fi irrationals is that the Te creative feels safe with the Fi creative because the Fi creative thinks the Te creative's inability to read and utilize Fe properly is endearing. The Fi creatives finds Fe fun but unimportant, so they take care of reading Fe cues FOR the Te creative. There certainly isn't any expectation for the Te creative to be capable of reading or utilizing Fe situational cues in order to feel that their need for Fi is being fulfilled.
Fe/Ti valuers, however, are dependent on situational cues because the status of their relationships is defined with Ti, not Fi. Ti is "cold and objective" compared to the ethical information elements, so an additional ingredient (Fe) is necessary in order for them to know that the relationship is indeed functioning as it should be.