First of all, Selena Gomez was not punched in the face. That rumor started after she put her hands in front of her face/mouth to block out the lights from the cameras. Photos seemed to reveal something on her lip that looks like a cold sore, and Bieber’s Twitter fans started telling people she’d been hit.
Justin Bieber definitely was flipping off the paparazzi, but it was probably just a combination of sheer annoyance and trying to be chivalrous for Selena Gomez.
Biebs has since apologized to fans for giving photographers the bird.