Chris is livid that he actually helped promote Migos' recent hit album, "Culture," at the same time Quavo was secretly seeing his ex-girlfriend.
Chris believes it's no coincidence Karrueche got a restraining order against him at the very time she started getting tight with the Migos rapper.
Rihanna is now in the unique position of being the other woman with her ex-boyfriend Chris Brown, who's currently dating aspiring model Karrueche Tran.
As reported in the new Us Weekly, Brown, 22, and Rihanna, 24, have been hooking up in secret for nearly a year — despite both his February 2009 assault of Rihanna and his present relationship with Tran, 23.
He believes this was orchestrated by both Karrueche and Quavo to clear the decks so they could date, without caring they would make him look like a chump.
Before Chris found out the 2 were dating, he did an interview with Billboard and called Migos "my real friends and brothers" and said, "I will never hate on you ni**as." Well, now he does.
His second album Exclusive (2007) spawned his second Hot 100 number one "Kiss Kiss", in addition to "With You" and "Forever".
A day after he was accused of raping a woman twice at Chris Brown's house, Lowell Grissom Jr.
(above, left) says there is zero evidence that he committed the alleged crime.
"Karrueche thinks Chris' studio is where most of the hookups have taken place." And she's determined to hang onto Brown despite the presence of the "We Found Love" chanteuse. He'll go off the grid she'll wonder what's going on, but at the moment Chris and Karrueche are still a couple." PHOTOS: Chris' scary 2011 meltdown For the record, Brown's rep denies any rekindled romance with Rihanna. "He's not cheating." Rihanna's rep had no comment.
According to a source, Tran "won't give him up for a few discretions." PHOTOS: Chris and Rihanna's tumultuous romance Warns the first insider: "Chris is a really passionate guy…He's still a hothead and he does what he wants .