Alone outside Roxane’s house, Cyrano and Christian discuss how to proceed with wooing Roxane. Christian begs Cyrano to speak more with Roxane, enabling him to kiss her that evening. Cyrano promises to speak more with her. Suddenly, Roxane opens her window again, and Christian dives under the balcony, out of her view.
Christian is well aware that he entirely depends on Cyrano to seduce Roxane. Similarly Cyrano, by this point, seems perfectly open to the idea that he needs Christian to seduce Roxane: though the two men haven’t gotten along in the past, they now recognize that they “complete” each other.