This is a relationship of Air and Spirit.
In numerology, 23 is a number of high social intelligence. It reduces to 5 (2+3), the number of freedom, change, and sensory experience.
The story begins with Variety and Chance. The protagonists meet not through destiny, but through chaos. Perhaps they are trapped in an elevator (physical confinement forcing the social 23 energy). They banter. They argue. They are interested but not yet in love.