GREASE - Where and Why does Kenickie go?

At the dance he gets told to get off the dance floor by that lady after he does that seen of lying down on the floor. But right when she's going over to tell him to get off one of the guys runs up to her and picks her up and she then screams. Right as that occurs you see Kenickie starting to remove his shirt and jacking running off the dance floor. Why does he run off the dance floor? Even if he was pulled off the dance floor you never see him later on at the dance standing beside anyone else. Even when Danny and Sandy are doing their dance and then as Danny and Cha Cha then do their big dance. They could of at least had him standing beside Sunny or in an crowd with everyone else. He just plainly disappears you don't see why or where to.