Things between Chris Brown and "maybe" ex-girlfriend Karrueche Tran have been shaky since the start of 2012. Most recently, Brown's shared kiss with Rihanna at the 2012 VMAs raised eyebrows, causing everyone to question the status of Tran and her bad boy boyfriend.

Now, the model has posted what look to be sub-tweets about Chris Brown, though one can never be sure. One of her posts read, "Life is too short to be anything but happy."

Chris got in on the sub-tweeting, and seemingly responded to Tran, saying, "Happiness is the one thing I'm never guaranteed.....How can U expect me to guarantee yours?"

Do you think the two are broken up?