This is paradoxical but potent. The Gap character is so overwhelmingly powerful (physically, financially, experientially) that the outside world cannot touch the couple. The only threat left is each other. For readers with anxiety, this creates a "contained catastrophe"—all danger is domestic and negotiable.
Writing a compelling Gapwap romance requires nuance to prevent the power imbalance from alienating the audience. Successful storylines prioritize emotional equity over material dominance. Phase 1: The Inciting Incident and Spark Gapwap Video Sex