Rihanna has deleted former beau Chris Brown from her Twitter account. Just when we thought they might be rekindling their romance, Chris Brown posted a remixed track last night which dissed Rihanna. In reaction to the video, the "Where Have You Been" singer unfollowed Chris on her account. Brown shortly removed her from his list as well.


Brown released a version of Kanye West's "TheraFlu", in which he refers to Rihanna by rapping "Don't f*** with my old b*****s ... like a bad fur ... every industry n***** done had her.... Trick or treat like a pumpkin ... just to smash her."


As his followers speculated who Brown might be rapping about, he tweeted a picture of himself on Twitter with the caption: "Assumptions! I didn't say any names so if u took offense [sic] to it then its something you feel guilty about."


The couple fell out three years ago when Brown assaulted Rihanna, leaving her with a bruised and battered face. However, the two have been rumored to be back together after Brown took part in recording with Rihanna for her track "Birthday Cake."


Rihanna has recently posted a picture of her arm hooked up to a drip. She was apparently hospitalized and put on a drip for exhaustion and dehydration.


Sources around RiRi are worried that the singer has been partying too hard in the recent months.


America's Star magazine reported that a source close to the singer said: "Rihanna loves to party but this past month she's gotten really out of control. She's been drinking almost everyday and talking about smoking weed a lot too. Everyone is telling her to slow down and think about therapy, or even rehab."
Rihanna is scheduled to perform her latest single "Where Have You Been" on the finale of American Idol on May 23.

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Rihanna, Chris Brown