One partner measures the whole bond: love, family, affection, sex, loyalty, shared history. From that view, the relationship may feel strong and the request for “more” can sound controlling.
The other measures the flow of erotic and emotional aliveness: where anticipation, vulnerability, pursuit, play, and intensity are going. From that view, the bond may be stable but underfed.
Neither measurement cancels the other. The work is to name what is protected, what may remain separate, and what the bond must continue receiving for both people to choose the structure freely.