Friends of Karrueche Tran say she isn't bothered by the amount of time Chris Brown spends with Rihanna because she and Chris have an 'open relationship...'
Insiders tell Radar Online
"Karrueche isn't stupid, and she has told friends that they have an open relationship. She never asks him about Rihanna, ever. Chris will take several days to call her back at times, and that is OK with Karreuche. She doesn't pressure or hound Chris, it's just not what she is about. She recognizes that they are both young, and she isn't going to let the fact Chris is spending time with his ex-girlfriend come between what they have,"
