It seems like Rihanna is the one to blame for breaking up the infamous love triangle, as it does not exist anymore since the split between Chris Brown and Karrueche Tran.

Karrueche Tran allegedly broke up with her on-and-off boyfriend, after finding out that her love rival had visited him in rehab. It has been reported that the Barbadian singer flew to Malibu rehabilitation center, where Chris Brown has been staying for his anger management and drug recovery program, via a private plane in late January. Rihanna spent a few hours with the X singer, before quickly jetting out, with only a few staffers knowing about their secret meet up.

"With Chris in rehab, [he] and Karrueche spoke every day and she stood by his side. She took a vacation to Turks and Caicos and told friends the entire time that they were really good and happy together," a source said. "She trusts Chris, but when it comes to Rihanna, she has a zero-tolerance policy. Then she found out about the trip."

"She believed him, but he finally admitted that Rihanna had come to see him," the source added. "She put her foot down and cut him off completely."

So what does Chris Brown have to say to all this? After the recent breakup, he took Twitter to express his love for Karrueche Tran, denying his reunion with the Pour It Up singer: "Kae will always be my heart. That ain't changing."