Justin Bieber and Selena Gomez break-up? Biebs doesn't thank her in Billboard Music Awards speech

Justin Bieber won Top Social Artist (whatever that is) at the 2012 Billboard Music Awards Sunday night. When he took to the stage, he gave a bit of a rambling speech, wherein he thanks his fans, Usher, his parents, God - but no mention of girlfriend Selena Gomez.

In fact, Gomez was not with him for these awards at all She was all snuggles with him at the awards last year (pictured above) - even kissing him on the air, which sent Bieber fans into an absolute frenzy on the internet.

The break-up rumors have been swirling recently after a tweet picture made its way onto the internet purporting to show Bieber tweeting, "thank you for the time i had with you but i have to move on."

However, Bieber's camp staunchly denied that that tweet ever appeared on his account. But it is a little weird she's not with him and wasn't mentioned in his acceptance speech - what do you think, Jelena fans?