Surprising Chinese wedding - who is the mistress?

BLUE SHIRT GUY (BSG): Shut up!
BSG: You were not even exist when we were together!
BRIDE: What does that s**t supposed to mean!!
GROOM: Back off!
BRIDE: Who the f**ker are you! What the hell are you doing on my wedding!
BRIDE (to the groom): Who is he? WHO THE MOTHERF**KER IS HE!!
GROOM (to the bride): Listen to me. BRIDE: Are you gonna tell me WHO THE AS***LE IS HE!!
BRIDE (to the BSG): What the hell are you doing? It has nothing to do with you! BSG (to the groom): You don't have to listen to him.
BSG: Stop fliming!!!! BRIDE (to the groom): Tell me! Tell me!
BEST MAN: Can you just calm down?...
BSG: Don't act like a bi**h!...
BRIDE: WTF?
BRIDE: Come back you cocksuckers!!!!
JOE BLOW: Holy crap! The groom is running away! rofl!!�