Chris Brown and Rihanna reuniting?

After weeks of rumors – first of a romantic reunion, and now of a falling out -- Rihanna's taken to Twitter with one last (ha! yeah right...) plea: "If u don't want me, someone else will ... if I'm not good enough!"

Rihanna posted that tweet a little before 7 a.m on Saturday, after weeks of rumors that she and Ashton Kutcher have become an item -- much to thKutcher's nitrous-huffing soon-to-be ex-wife Demi Moore.

The couple has not officially been together for three years, after incident where Chris Brown was arrested after punching Rihanna repeatedly with one hand while driving his car with the other after the two got into a fight. For about three years the two kept their distance, but that all changed around this year's Grammy's.

First, Rihanna and Brown were spotted canoodling at her Valentine's Day bash -- in fact, Chris Brown supposed actually brought nominal girlfriend Karrueche Tran, only to leave her in the car while he was inside flirting with Brown.

So, are they finally broken up for good, much to the chagrin of gossip columnists everywhere?

If you take Rihanna's tweet at its 140-character words, then it sure seems so.