What are the four main characters doing at the very end of the play?

Sybil and Victor are screaming at each other after having spent the last several days getting on each others' nerves. The fight escalates to the point that Sybil slaps Victor and he, in turn, starts shaking her. Meanwhile, Elyot and Amanda silently forgive each other and, greatly amused by the antics of their spouses, escape together with their suitcases.