CHRIS BROWN CAMP WANTS YOU TO KNOW HE DUMPED EX-GIRLFRIEND BECAUSE "SHE'S AN OPPORTUNIST"

Over the weekend news leaked Karrueche Tran kicked Chris Brown to the curb.  Sources say Karrueche exploded when Chris recently "liked" 2 fan photos on Instagram of Rihanna and him together.

 But Rihanna was only a small part of Karrueche's problems with Chris. We're told she was unhappy for a long time ... as sources put it, because "Chris acts immature, like a child." She thinks he's ruining his life by spending more time partying than making music.


Chris' reaction to the break up has been breathtaking. He went to St. Tropez this week and took a very good friend of Karrueche's along for the ride. And he made a point to be photographed with her ... making sure Karrueche would see it.

Turns out it was the other way around… 

From TMZ

Chris' people tell us ... he found out Karrueche was texting and sending photos to other guys while they were together. He was also furious she did interviews for her clothing line and talked about their relationship.

In a word ... Chris decided she was an "opportunist" and dumped her.

Meanwhile Chris has been staying busy commenting photoshop pictures of himself and Rihanna on social media.