Selena Gomez did not want to be greeted by the paparazzi at LAX today, and she hid her face behind her handbag as she entered the airport Saturday afternoon. The appearance is the first she's made since it was revealed that she and Justin Bieber have called it quits. It's reportedly been about a week since they called it quits, but news of the breakup just surfaced Friday night. Sources say the split had to do with their hectic schedules, but it also appears that a Victoria's Secret model might have had a hand in the split. Wednesday night, Bieber performed at the VS Fashion Show in NYC and was rumored to be getting very friendly with 19-year-old model Barbara Palvin. They reportedly went to a play together last week too and there was a whole bunch of drama online when Gomez posted a pic of her ex with Palvin in the background. Yikes! So far, no official comment on the breakup from Gomez or the Biebs. But, judging by the actress' behavior at LAX, she's not going to talk anytime soon.