The singer, who confirmed last week that he had split from Tran because of his friendship with Rihanna, is said to be constantly texting and calling her.
"Chris has been in constant communication with Karrueche ever since she dumped him. She ended it with Chris because he was just blatantly flaunting his dalliances with Rihanna, but now he's telling her how sorry he is and how much he loves her," a source told Radar Online.
"She is just too hurt to even go there at this point. Karrueche just wants a break from all of this drama, and she knows that Chris wants whatever he can't have. Karrueche thinks Chris has a lot of maturing he needs to do, and she can't trust him.
"Tran has been getting hit on by tons of guys and her girlfriends are eager to set her up. Karrueche hasn't given up on love, she just wants to be with someone that is worthy of being with her."
Brown recently featured in a video in which he admitted he is in love with two women.
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