Rihanna and on-and-off boyfriend Chris Brown may have called it quits the night of the Feb. 10 Grammy's because of Drake, according to reports.

While The Nobody's Business singer is gearing up to celebrate her 25th birthday on Feb.20, new reports have surfaced claiming the cause of the break-up between her and Brown.

Although the couple seemed very happy in all of their photos together at the Grammy's celebration, The Sun reported that the couple split over text messages from singer, Drake.

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

Sources said this might explain why they both attended the Playhouse on Feb. 15, but refused to sit next to each other and hadn't exchanged a word, or why Rihanna spent Valentine's Day solo.

According to US Weekly, a report also surfaced that Brown partied with ex-girlfriend KarruecheTran.

US Weekly reported that Brown made a surprise appearance at the Topshop/Topman launch party at Cecconi's in West Hollywood on Wednesday, among other Hollywood stars including, Kanye West and girlfriend Kim Kardashian, Kate Bosworth, Kris Jenner, Emma Roberts, Kelly Osburne, plus Jennifer Lopes and Casper Smart. According to one source, Brown's date was ex-girlfriend/ model, 24-year-old Tran.

Rihanna did not seem phased about the rumors. She tweeted this photo of her chilling poolside at an unknown location, undoubtedly to relax.

"I know you want my cropped knot tank #RIHforRiverIsland," she wrote

Just this weekend she debuted her River Island collection at London Fashion Week, was attacked in a nightclub by a deranged fan who reportedly yelled at her about Chris Brown, and was compared to the late Princess Diana on the cover of The Sunday Times.

Tags
Rihanna, Chris Brown