It seems as if Rihanna has a habit of going back to her former flames. The Stay bombshell was reported to have split with supposed "love of her life" Chris Brown for ex-lover Drake, contacting the latter on the night of the Grammys.

The singer was snapped looking cozy with Brown at the prestigious awards show, but a source tells The Sun things weren't going as well as it seemed.

"Chris and Rihanna had a big bust-up at the Grammys over Drake," the source reveals. "She was messaging him and Chris saw and it didn't go down well. Since that night they have barely spoken and have been doing their own things."

That explains why, despite officially coming out to the Grammys together, the dynamic duo hasn't been seen together since. Giving Rihanna a dose of her own medicine, Brown reportedly hung out with his ex-girlfriend Karrueche Tran the previous weekend.

On the other hand, Rihanna flew out of the country to launch her first fashion venture at the London Fashion Week, spending some time partying with famous Brits such as Cara Delevingne. Her latest Instagram photos show no sign of Brown, despite it being her birthday.

Considering Brown and Drake were both involved in a brawl at a New York club in 2012, it's no wonder why the renewed communication between Rihanna and her former flame caused quite the argument.

The disagreement between the volatile couple isn't new for Brown and Rihanna. After their violent fall-out in 2009, the pair has been involved in endless drama-and it doesn't look like anything's about to change this round.

"For now they have split up but they will probably make up at some point," the source concludes.