NOT SWAGGY! 

JUSTIN BIEBER and SELENA GOMEZ - who reportedly made up Friday - came crashing down after an attempted dinner Friday night which ended with SELENA STORMING out of the restaurant after what TMZ calls "an epic fight." 

Biebs reportedly followed, but ended up getting the shaft at the gated entrance to Casa Gomez. She wouldn't let him in! 

Click here for the full story from TMZ...