Chris Brown and Rihanna just collaborated on two songs together not too long ago … but it now looks like the two might be beefing over an ALLEGED diss track.

Chris just released a new freestyle over Kanye West‘s “Way Too Cold (Theraflu)” track that has a few lines that may (or may not) be directed towards his former flame Rihanna.

In the freestyle verse, Brown raps:

“Don’t f**k with my old bitches … like a bad fur … every industry n**ga done had her … trick or treat like a pumpkin … just to smash her … bitch is breaking codes … but I’m the password”

Rihanna must have caught wind of the new track, and was pretty quick too, because shortly after the song hit the Internet, Rihanna unfollowed Chris on Twitter and tweetgrammed a photo that read, “Take that thumb out of your ass.” (Sidenote: She deleted that tweet before we were able to get a screengrab)

Responding to the perceived, though not confirmed, offense Rihanna took to the ALLEGED “diss” … Chris Brown tweeted this morning:

Chris has since unfollowed Rihanna on Twitter … and so far, there has been no comment from neither Chris nor Rihanna’s reps.

The timing of the alleged diss is ironic too, considering Rihanna just wished Chris Brown a Happy Birthday last Saturday (May 5):

Do you think Chris Brown really dissed Rihanna … or is Rihanna just reading too much into an “innocent” freestyle verse?