Detlef's keeling over is definitely the most dramatic reaction to his teasing he's ever seen. He should've been an actor.

"Come on, don't give up that easy," Faro pleads with as much seriousness as he can muster, which isn't a whole lot. He lays his palm on Detlef's leg and gives him a playful shake as if to wake him up. "I can't go on without you, I need you to help me up."

That hand on his leg actually makes a good support for pushing himself up to his feet. Marion's wandering back their way as he stands, probably drawn in by Detlef's seeming collapse. Or she just decided it's a good time to eat his hair.