Karrueche Tran thinks Rihanna might be pining to get back with Chris Brown and she wants her to know she's more than welcome to "enjoy my leftovers."

HollywoodLife reports Tran was none too thrilled and perhaps prompted to react after recently hearing the "Diamonds" singer was never pleased about her being with Brown and never thought she was right for him.

"Karrueche doesn't know why Rihanna is now trying to fight with her," a source told HollywoodLife. "Maybe she's mad because Karrueche took Chris from her and she was the one who got dumped in the end. Yeah, maybe that's it. But Karrueche's done scraping her plate and Rihanna's free to have her leftovers and the headaches that come with it."

Reports are Rihanna and the 26-year-old "Loyal" singer spent some time together at the recent BET Awards when she came back stage to hear him rehearse. Later during the show, she could be seen rocking out and singing alone to one of the songs he performed during the night.

Brown later told reporters he came close to bringing his ex on stage to perform with him.

HollywoodLife has previously reported Rihanna is of the opinion Brown "needs someone who's equally yoked" to him and in her eyes Karrueche "doesn't cut it" as the right type of girl for him.

Tran, 27, recently split from Brown after it became public knowledge that he fathered a daughter with another woman behind her back while they were still dating.

Since their split, the pair have openly butted heads on several different occasions, including recently engaging in a volatile screaming match at a Hollywood party that led to Brown showing up at her home in the middle of the night and police having to be called to the scene to quell the disturbance.