Has Chris Brown dumped Karrueche Tran?

Is Chris Brown done with on/off girlfriend, Karrueche Tran? He hooked up with her again after breaking up with Rihanna in May but it seems her services are no longer needed...

Chris Brown tells Hollywood Life,

"[Fans have] seen me on and off again with different girls, you know who they are, but right now, as a 24-year-old man, I just choose to be single!"

''I'm still good friends with them. [Now] it's just me being focused with my music and doing this stuff. Right now, I'm in my prime.''