SUPER-WORD EXCLUSIVE!!! CHRIS BROWN'S GF DUMPED HIM . . . AND WE HAVE THE LAST WORDS SHE SAID TWO HIM . .. BEFORE SHE GAVE HIM THE DUECES!!! (AND WE'VE GOT PROOF)

It's official . .. i.e. NOT a rumor . . . Chris Brown and his on-again-off-again girlfriend Karrueche are OFFICIALLY OVER!!! A top secret MTO insider explained to us that last night - KAE had enough - and she DUMPED CHRIS BROWN. What happened? Well according to a snitch, ever since Chris Brown MADE OUT with Rihanna during the VMAs, things weren't the same. As MediaTakeOut.com exclusively reported, Kae went to a club WITHOUT HIM on Wednesday night. But LAST NIGHT, Chris was supposed to meet up with his GF at the G.O.O.D. Music release party at the LA hotspot BLOK. The snitch told MediaTakeout.com,"Chris texted her telling him he was on his way . . . he never showed up and didn't answer any of her texts." Instead of meeting up with his GF, Chris and a group of friends went to a club JUST ONE BLOCK AWAY - Roxbury, where he flirted it up with a GANG OF GROUPIES. Adds the insider, "It was embarrassing [for Karrueche], she knows he's famous so she's willing to put up with some stuff. But [Chris] is just being too over the top with his [shenanigans]." When Karrueche got home from the club, she DUMPED Chris Brown - via Twitter. She sent him the message "THE END."